Paul Hibbard - Publications

Affiliations: 
University of St Andrews, Saint Andrews, Scotland, United Kingdom 

116 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2021 Goutcher R, Barrington C, Hibbard PB, Graham B. Binocular vision supports the development of scene segmentation capabilities: Evidence from a deep learning model. Journal of Vision. 21: 13. PMID 34289490 DOI: 10.1167/jov.21.7.13  1
2021 Asher JM, O'Hare L, Hibbard PB. No Evidence of Reduced Contrast Sensitivity in Migraine-with-Aura for Large, Narrowband, Centrally Presented Noise-Masked Stimuli. Vision (Basel, Switzerland). 5. PMID 34205592 DOI: 10.3390/vision5020032  1
2021 O'Hare L, Asher JM, Hibbard PB. Migraine Visual Aura and Cortical Spreading Depression-Linking Mathematical Models to Empirical Evidence. Vision (Basel, Switzerland). 5. PMID 34200625 DOI: 10.3390/vision5020030  1
2020 Webb ALM, Hibbard PB. Suppression durations for facial expressions under breaking continuous flash suppression: effects of faces' low-level image properties. Scientific Reports. 10: 17427. PMID 33060699 DOI: 10.1038/s41598-020-74369-2  0.01
2020 Asher JM, Hibbard PB. No effect of feedback, level of processing or stimulus presentation protocol on perceptual learning when easy and difficult trials are interleaved. Vision Research. 176: 100-117. PMID 32836059 DOI: 10.1016/j.visres.2020.07.011  0.01
2020 Webb ALM, Hibbard PB, O'Gorman R. Contrast normalisation masks natural expression-related differences and artificially enhances the perceived salience of fear expressions. Plos One. 15: e0234513. PMID 32525966 DOI: 10.1371/journal.pone.0234513  0.04
2020 Hornsey RL, Hibbard PB, Scarfe P. Size and shape constancy in consumer virtual reality. Behavior Research Methods. PMID 32399659 DOI: 10.3758/S13428-019-01336-9  1
2020 Goutcher R, Hibbard PB. Impairment of cyclopean surface processing by disparity-defined masking stimuli. Journal of Vision. 20: 1. PMID 32040160 DOI: 10.1167/jov.20.2.1  1
2020 Kingdom FAA, Yared KC, Hibbard PB, May KA. Stereoscopic depth adaptation from binocularly correlated versus anti-correlated noise: Test of an efficient coding theory of stereopsis. Vision Research. 166: 60-71. PMID 31855669 DOI: 10.1016/J.Visres.2019.10.009  1
2019 Aldrich A, Hibbard P, Wilkins A. Vision and Hyper-Responsiveness in Migraine. Vision (Basel, Switzerland). 3. PMID 31735863 DOI: 10.3390/vision3040062  0.01
2019 Asher JM, Romei V, Hibbard PB. Spatial Frequency Tuning and Transfer of Perceptual Learning for Motion Coherence Reflects the Tuning Properties of Global Motion Processing. Vision (Basel, Switzerland). 3. PMID 31735845 DOI: 10.3390/vision3030044  0.01
2019 Webb ALM, Hibbard PB. The effect of facial expression on contrast sensitivity: A behavioural investigation and extension of Hedger, Adams & Garner (2015). Plos One. 14: e0205621. PMID 31693664 DOI: 10.1371/journal.pone.0205621  0.01
2018 Asher JM, O'Hare L, Romei V, Hibbard PB. Typical Lateral Interactions, but Increased Contrast Sensitivity, in Migraine-With-Aura. Vision (Basel, Switzerland). 2. PMID 31735871 DOI: 10.3390/vision2010007  1
2018 Goutcher R, Connolly E, Hibbard PB. Surface continuity and discontinuity bias the perception of stereoscopic depth. Journal of Vision. 18: 13. PMID 30458518 DOI: 10.1167/18.12.13  1
2018 Asher JM, Hibbard PB. First- and second-order contributions to depth perception in anti-correlated random dot stereograms. Scientific Reports. 8: 14120. PMID 30237535 DOI: 10.1038/s41598-018-32500-4  0.01
2018 Chiappini E, Silvanto J, Hibbard PB, Avenanti A, Romei V. Strengthening functionally specific neural pathways with transcranial brain stimulation. Current Biology : Cb. 28: R735-R736. PMID 29990453 DOI: 10.1016/J.Cub.2018.05.083  0.01
2018 Webb ALM, Hibbard PB, O'Gorman R. Natural variation in female reproductive hormones does not affect contrast sensitivity. Royal Society Open Science. 5: 171566. PMID 29515869 DOI: 10.1098/rsos.171566  0.01
2018 Hunter DW, Hibbard PB. The effect of image position on the Independent Components of natural binocular images. Scientific Reports. 8: 449. PMID 29323133 DOI: 10.1038/s41598-017-18460-1  1
2017 Jonas C, Spiller MJ, Hibbard PB, Proulx M. Introduction to the Special Issue on Individual Differences in Multisensory Perception: an Overview. Multisensory Research. 30: 461-466. PMID 31287087 DOI: 10.1163/22134808-00002594  0.01
2017 Jonas C, Spiller MJ, Hibbard P. Summation of visual attributes in auditory-visual crossmodal correspondences. Psychonomic Bulletin & Review. PMID 28695529 DOI: 10.3758/s13423-016-1215-2  0.01
2017 Hibbard PB, Haines AE, Hornsey RL. Magnitude, precision, and realism of depth perception in stereoscopic vision. Cognitive Research: Principles and Implications. 2: 25. PMID 28603771 DOI: 10.1186/s41235-017-0062-7  1
2017 Beattie L, Curran W, Benton CP, Harris JM, Hibbard PB. Perceived duration of brief visual events is mediated by timing mechanisms at the global stages of visual processing. Royal Society Open Science. 4: 160928. PMID 28405382 DOI: 10.1098/rsos.160928  1
2016 Hornsey RL, Hibbard PB, Scarfe P. Binocular Depth Judgments on Smoothly Curved Surfaces. Plos One. 11: e0165932. PMID 27824895 DOI: 10.1371/Journal.Pone.0165932  1
2016 Romei V, Chiappini E, Hibbard PB, Avenanti A. Empowering Reentrant Projections from V5 to V1 Boosts Sensitivity to Motion. Current Biology : Cb. PMID 27524488 DOI: 10.1016/J.Cub.2016.06.009  0.01
2016 Hunter DW, Hibbard PB. Ideal Binocular Disparity Detectors Learned Using Independent Subspace Analysis on Binocular Natural Image Pairs. Plos One. 11: e0150117. PMID 26982184 DOI: 10.1371/journal.pone.0150117  1
2016 Curran W, Benton CP, Harris JM, Hibbard PB, Beattie L. Adapting to time: Duration channels do not mediate human time perception. Journal of Vision. 16: 4. PMID 26943349 DOI: 10.1167/16.5.4  1
2015 Hibbard PB, Goutcher R, Hunter DW. Encoding and estimation of first- and second-order binocular disparity in natural images. Vision Research. PMID 26731646 DOI: 10.1016/j.visres.2015.10.016  1
2015 O'Hare L, Hibbard PB. Visual processing in migraine. Cephalalgia : An International Journal of Headache. PMID 26611680 DOI: 10.1177/0333102415618952  1
2015 Jonas CN, Hibbard PB. Migraine in Synesthetes and Nonsynesthetes: A Prevalence Study. Perception. 44: 1179-1202. PMID 26562888 DOI: 10.1177/0301006615599905  1
2015 Hunter DW, Hibbard PB. Distribution of independent components of binocular natural images. Journal of Vision. 15: 6. PMID 26381837 DOI: 10.1167/15.13.6  1
2015 Hibbard PB, O'Hare L. Uncomfortable images produce non-sparse responses in a model of primary visual cortex. Royal Society Open Science. 2: 140535. PMID 26064607 DOI: 10.1098/rsos.140535  1
2015 Hunter D, Hibbard P. Understanding of ecologically valid binocular stimuli F1000research. 4. DOI: 10.7490/F1000Research.1110390.1  0.01
2014 Hibbard PB, Scott-Brown KC, Haigh EC, Adrain M. Depth perception not found in human observers for static or dynamic anti-correlated random dot stereograms. Plos One. 9: e84087. PMID 24416195 DOI: 10.1371/journal.pone.0084087  1
2014 Goutcher R, Hibbard PB. Mechanisms for similarity matching in disparity measurement. Frontiers in Psychology. 4: 1014. PMID 24409163 DOI: 10.3389/fpsyg.2013.01014  1
2014 Zhang T, O'Hare L, Hibbard PB, Nefs HT, Heynderickx I. Depth of field affects perceived depth in stereographs Acm Transactions On Applied Perception. 11. DOI: 10.1145/2667227  1
2014 Wilkins AJ, Hibbard PB. Discomfort and hypermetabolism Aisb 2014 - 50th Annual Convention of the Aisb 1
2013 Vishwanath D, Hibbard PB. Seeing in 3-d with just one eye: stereopsis without binocular vision. Psychological Science. 24: 1673-85. PMID 23892232 DOI: 10.1177/0956797613477867  1
2013 O'Hare L, Zhang T, Nefs HT, Hibbard PB. Visual discomfort and depth-of-field. I-Perception. 4: 156-69. PMID 23799193 DOI: 10.1068/i0566  1
2013 O'Hare L, Clarke AD, Hibbard PB. Visual search and visual discomfort. Perception. 42: 1-15. PMID 23678612 DOI: 10.1167/12.9.734  1
2013 Scarfe P, Hibbard PB. Reverse correlation reveals how observers sample visual information when estimating three-dimensional shape. Vision Research. 86: 115-27. PMID 23665429 DOI: 10.1016/J.Visres.2013.04.016  1
2013 O'Hare L, Hibbard PB. Visual discomfort and blur. Journal of Vision. 13. PMID 23576113 DOI: 10.1167/13.5.7  1
2012 Hibbard PB, Goutcher R, O'Kane LM, Scarfe P. Misperception of aspect ratio in binocularly viewed surfaces. Vision Research. 70: 34-43. PMID 22925917 DOI: 10.1016/J.Visres.2012.08.003  1
2012 Bannerman RL, Hibbard PB, Chalmers K, Sahraie A. Saccadic latency is modulated by emotional content of spatially filtered face stimuli. Emotion (Washington, D.C.). 12: 1384-92. PMID 22775132 DOI: 10.1037/A0028677  1
2012 May KA, Zhaoping L, Hibbard PB. Perceived direction of motion determined by adaptation to static binocular images. Current Biology : Cb. 22: 28-32. PMID 22177901 DOI: 10.1016/j.cub.2011.11.025  1
2012 Harris JM, Chopin A, Zeiner K, Hibbard PB. Perception of relative depth interval: systematic biases in perceived depth. Quarterly Journal of Experimental Psychology (2006). 65: 73-91. PMID 21923632 DOI: 10.1080/17470218.2011.589520  1
2012 Hibbard PJ, Okie AM, Darling PG. Demand Response in Capacity Markets: Reliability, Dispatch and Emission Outcomes Electricity Journal. 25: 14-24. DOI: 10.1016/j.tej.2012.10.010  1
2012 Hibbard PJ, Schatzki T. The Interdependence of Electricity and Natural Gas: Current Factors and Future Prospects Electricity Journal. 25: 6-17. DOI: 10.1016/j.tej.2012.04.012  1
2011 O'Hare L, Hibbard PB. Spatial frequency and visual discomfort. Vision Research. 51: 1767-77. PMID 21684303 DOI: 10.1016/j.visres.2011.06.002  1
2011 Scarfe P, Hibbard PB. Statistically optimal integration of biased sensory estimates. Journal of Vision. 11. PMID 21670095 DOI: 10.1167/11.7.12  1
2011 Keefe BD, Hibbard PB, Watt SJ. Depth-cue integration in grasp programming: no evidence for a binocular specialism. Neuropsychologia. 49: 1246-57. PMID 21371484 DOI: 10.1016/j.neuropsychologia.2011.02.047  1
2011 Hibbard PJ, Tierney SF. Carbon control and the economy: Economic impacts of RGGI's first three years Electricity Journal. 24: 30-40. DOI: 10.1016/j.tej.2011.10.020  1
2010 Sahraie A, Hibbard PB, Trevethan CT, Ritchie KL, Weiskrantz L. Consciousness of the first order in blindsight. Proceedings of the National Academy of Sciences of the United States of America. 107: 21217-22. PMID 21078979 DOI: 10.1073/pnas.1015652107  1
2010 Goutcher R, Hibbard PB. Evidence for relative disparity matching in the perception of an ambiguous stereogram. Journal of Vision. 10: 35. PMID 21047767 DOI: 10.1167/10.12.35  1
2010 O'Kane LM, Hibbard PB. Contextual effects on perceived three-dimensional shape. Vision Research. 50: 1095-100. PMID 20363240 DOI: 10.1016/j.visres.2010.03.024  1
2010 Zhaoping L. Ocularity as a basic visual feature dimension for bottom-up attentional attraction Perception. 39: 4-4. DOI: 10.1177/03010066100390S101  1
2008 Hibbard PB. Can appearance be so deceptive? Representationalism and binocular vision. Spatial Vision. 21: 549-59. PMID 19017482 DOI: 10.1163/156856808786451444  1
2008 Hibbard PB. Binocular energy responses to natural images. Vision Research. 48: 1427-39. PMID 18456305 DOI: 10.1016/j.visres.2008.03.013  1
2007 O'Kane LM, Hibbard PB. Vertical disparity affects shape and size judgments across surfaces separated in depth. Perception. 36: 696-702. PMID 17624116 DOI: 10.1068/p5406  1
2007 Curran W, Hibbard PB, Johnston A. The visual processing of motion-defined transparency. Proceedings. Biological Sciences / the Royal Society. 274: 1049-56. PMID 17284410 DOI: 10.1098/Rspb.2006.0260  1
2007 Hibbard P. A statistical model of binocular disparity Visual Cognition. 15: 149-165. DOI: 10.1080/13506280600648018  1
2006 Hibbard PB, Bradshaw MF. 2-D tilt and 3-D slant illusions in perception and action tasks. Perception. 35: 1297-305. PMID 17214377 DOI: 10.1068/p5365  1
2006 Bradshaw MF, Hibbard PB, Parton AD, Rose D, Langley K. Surface orientation, modulation frequency and the detection and perception of depth defined by binocular disparity and motion parallax. Vision Research. 46: 2636-44. PMID 16571356 DOI: 10.1016/J.Visres.2006.02.011  1
2006 Scarfe P, Hibbard PB. Disparity-defined objects moving in depth do not elicit three-dimensional shape constancy. Vision Research. 46: 1599-610. PMID 16364392 DOI: 10.1016/J.Visres.2005.11.002  1
2005 Hibbard PB, Bouzit S. Stereoscopic correspondence for ambiguous targets is affected by elevation and fixation distance. Spatial Vision. 18: 399-411. PMID 16167773 DOI: 10.1163/1568568054389589  1
2005 Hibbard PB. The orientation bandwidth of cyclopean channels. Vision Research. 45: 2780-5. PMID 16040077 DOI: 10.1016/j.visres.2005.06.006  1
2004 Bradshaw MF, Elliott KM, Watt SJ, Hibbard PB, Davies IR, Simpson PJ. Binocular cues and the control of prehension. Spatial Vision. 17: 95-110. PMID 15078014 DOI: 10.1163/156856804322778288  1
2003 Rose D, Bradshaw MF, Hibbard PB. Attention affects the stereoscopic depth aftereffect. Perception. 32: 635-40. PMID 12854650 DOI: 10.1068/P3324  1
2003 Hibbard PB, Bradshaw MF. Reaching for virtual objects: binocular disparity and the control of prehension. Experimental Brain Research. 148: 196-201. PMID 12520407 DOI: 10.1007/s00221-002-1295-2  1
2003 Mon-Williams M, Murphy S, Hibbard P. The tactics and timing of smooth corrections in human arm movements Journal of Vision. 3: 388a. DOI: 10.1167/3.9.388  1
2003 Bradshaw MF, Hibbard PB. Reaching for virtual objects: Binocular disparity retinal motion and the control of prehension Arquivos Brasileiros De Oftalmologia. 66: 53-61.  1
2002 Bradshaw MF, Hibbard PB, van der Willigen R, Watt SJ, Simpson PJ. The stereoscopic anisotropy affects manual pointing. Spatial Vision. 15: 443-58. PMID 12434823 DOI: 10.1163/156856802320401900  1
2002 Hibbard PB, Bradshaw MF, Langley K, Rogers BJ. The stereoscopic anisotropy: individual differences and underlying mechanisms. Journal of Experimental Psychology. Human Perception and Performance. 28: 469-76. PMID 11999867 DOI: 10.1037//0096-1523.28.2.469  1
2002 Hibbard PB, Bradshaw MF. Isotropic integration of binocular disparity and relative motion in the perception of three-dimensional shape. Spatial Vision. 15: 205-17. PMID 11991575 DOI: 10.1163/15685680252875174  1
2002 Bradshaw MF, Hibbard PB, Gillam B. Perceptual latencies to discriminate surface orientation in stereopsis. Perception & Psychophysics. 64: 32-40. PMID 11916300 DOI: 10.3758/Bf03194555  1
2002 Hibbard PB. Integration and segmentation of opposite contrast polarities in the perception of motion Journal of Vision. 2: 396a. DOI: 10.1167/2.7.396  1
2002 Tierney SF, Hibbard PJ. Siting power plants in the new electric industry structure: Lessons from California and best practices for other states Electricity Journal. 15: 35-50. DOI: 10.1016/S1040-6190(02)00315-9  1
2001 Willis AR, Bradshaw MF, Hibbard PB, Stringer N, Davies IRL, Watt SJ. Can telepresent observers learn to take account of enhanced binocular disparities? Proceedings of Spie - the International Society For Optical Engineering. 4297: 346-354. DOI: 10.1117/12.430834  1
2001 Watt SJ, Bradshaw MF, Hibbard PB, Davies IRL, Stringer N, Willis AR. Can observers exploit enhanced motion parallax to control reaching movements within telepresence environments ? Proceedings of Spie - the International Society For Optical Engineering. 4299: 429-438. DOI: 10.1117/12.429513  1
2000 Hibbard PB, Bradshaw MF, Eagle RA. Cue combination in the motion correspondence problem. Proceedings. Biological Sciences / the Royal Society. 267: 1369-74. PMID 10972134 DOI: 10.1098/rspb.2000.1152  1
2000 Bradshaw MF, Hibbard PB, van der Willigen R, Watt SJ, Davies IRL, Stringer N, Beagley N, Willis A. Can observers exploit enhanced disparity information to control reaching movements within telepresence environments? Proceedings of Spie - the International Society For Optical Engineering. 3957: 253-261. DOI: 10.1117/12.384450  1
1999 Everatt J, Bradshaw MF, Hibbard PB. Visual processing and dyslexia. Perception. 28: 243-54. PMID 10615463  1
1999 Hibbard PB, Bradshaw MF. Does binocular disparity facilitate the detection of transparent motion? Perception. 28: 183-91. PMID 10615459  1
1999 Langley K, Fleet DJ, Hibbard PB. Stereopsis from contrast envelopes. Vision Research. 39: 2313-24. PMID 10367053 DOI: 10.1016/S0042-6989(98)00271-5  1
1999 Hibbard PB, Bradshaw MF, DeBruyn B. Global motion processing is not tuned for binocular disparity. Vision Research. 39: 961-74. PMID 10341948 DOI: 10.1016/S0042-6989(98)00155-2  1
1998 Bradshaw MF, Hibbard PB. Depth perception. Perception. 27: 1263-5. PMID 10505173  1
1998 Langley K, Fleet DJ, Hibbard PB. Linear and nonlinear transparencies in binocular vision. Proceedings. Biological Sciences / the Royal Society. 265: 1837-45. PMID 9802240 DOI: 10.1098/Rspb.1998.0510  1
1998 Hibbard PB, Langley K. Plaid slant and inclination thresholds can be predicted from components. Vision Research. 38: 1073-84. PMID 9666967 DOI: 10.1016/S0042-6989(97)00275-7  1
1996 Langley K, Fleet DJ, Hibbard PB. Linear filtering precedes nonlinear processing in early vision. Current Biology : Cb. 6: 891-6. PMID 8805306 DOI: 10.1016/S0960-9822(02)00613-9  1
1984 Whiteside RA, Ostlund NS, Hibbard PG. A Parallel Jacobi Diagonalization Algorithm for a Loop Multiple Processor System Ieee Transactions On Computers. 409-413. DOI: 10.1109/TC.1984.1676457  1
1983 Bruegge B, Hibbard P. Generalized path expressions: A high-level debugging mechanism The Journal of Systems and Software. 3: 265-276. DOI: 10.1016/0164-1212(83)90012-2  1
1982 Ostlund NS, Whiteside RA, Hibbard PG. Computational chemistry and computer science Journal of Physical Chemistry. 86: 2190-2197.  1
1978 Hibbard P, Hisgen A, Rodeheffer T. LANGUAGE IMPLEMENTATION DESIGN FOR A MULTIPROCESSOR COMPUTER SYSTEM . 66-72.  1
1973 Charlton CC, Hibbard PG. NOTE ON RECREATING SOURCE CODE FROM THE REVERSE POLISH FORM Software - Practice and Experience. 3: 151-153.  1
1968 Buckingham AD, Hibbard PG. Polarizability and hyperpolarizability of the helium atom Symposia of the Faraday Society. 2: 41-47.  1
1943 Hibbard PL. Comparative amounts of zinc extracted from soils by a chemical solvent and by plants Soil Science. 56: 433-442.  1
1940 Hibbard PL. A soil zinc survey in california Soil Science. 49: 63-72.  1
1940 Hibbard PL. Accumulation of zinc on soil under long-persistent vegetation Soil Science. 50: 53-55.  1
1938 Hibbard PL. Estimation of copper, zinc, and cobalt (with nickel) in soil extracts: Dithizone methods particularly adapted to examination of soils Industrial and Engineering Chemistry. 10: 615-618.  1
1938 Hibbard PL. The symbol dz to signify dithizone Industrial and Engineering Chemistry. 10: 179.  1
1937 Hibbard PL. A dithizone method for measurement of small amounts of zinc Industrial and Engineering Chemistry. 9: 127-131.  1
1935 Hibbard PL. Factors influencing phosphate fixation in soils Soil Science. 39: 337-358.  1
1934 Hibbard PL. Micromethods for determination of zinc Industrial and Engineering Chemistry. 6: 423-425.  1
1933 Hibbard PL. Estimation of plant available phosphate in soil Soil Science. 35: 17-28.  1
1932 Hibbard PL. INFLUENCE OF METHOD OF SHAKING ON AMOUNT OF PHOSPHATE DISSOLVED FROM SOIL BY WATER. Science (New York, N.Y.). 75: 464-5. PMID 17784240 DOI: 10.1126/science.75.1948.464  1
1932 Hibbard PL. Removal of color from solutions to be examined by color comparisons Industrial and Engineering Chemistry. 4: 283.  1
1931 Hibbard PL. Chemical methods for estimating the availability of soil phosphate Soil Science. 31: 437-466.  1
1930 Hibbard PL. Apparatus for percolation at a uniform rate and automatic collecting device Industrial and Engineering Chemistry. 2: 404-405.  1
1928 Hoagland DR, Davis AR, Hibbard PL. THE INFLUENCE OF ONE ION ON THE ACCUMULATION OF ANOTHER BY PLANT CELLS WITH SPECIAL REFERENCE TO EXPERIMENTS WITH NITELLA. Plant Physiology. 3: 473-86. PMID 16652583 DOI: 10.1104/pp.3.4.473  0.01
1928 Hibbard PL. A brief method for chemical examination of irrigation waters and alkali soils Soil Science. 25: 351-355.  1
1926 Hoagland DR, Hibbard PL, Davis AR. THE INFLUENCE OF LIGHT, TEMPERATURE, AND OTHER CONDITIONS ON THE ABILITY OF NITELLA CELLS TO CONCENTRATE HALOGENS IN THE CELL SAP. The Journal of General Physiology. 10: 121-46. PMID 19872303  0.01
1925 Hibbard PL. A RAPID METHOD FOR DEMONSTRATING THE EFFECTS OF PLANTS ON A CULTURE SOLUTION. Science (New York, N.Y.). 62: 515-6. PMID 17787203 DOI: 10.1126/science.62.1614.515  1
1923 Hibbard PL. Comparison of the soil solution by displacement method and the water extract of alkali soils Soil Science. 16: 465-471.  1
1922 Hibbard PL. Some experiments on reclamation of infertile alkali soils by means of gypsum and other treatments Soil Science. 13: 125-134.  1
1921 Hibbard PL. Sulfur for neutralizing alkali soil Soil Science. 11: 385-387.  1
1919 Hibbard PL. Changes in composition of the soil and of the water extract of the soil, following addition of manure Soil Science. 7: 259-272.  1
1919 Hibbard PL. The volumetric determination of sulfates by oxidation of benzidine sulfate with kmno4 Soil Science. 8: 61-65.  1
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