@article{buol_2009, title={Soils and agriculture in central-west and north Brazil}, volume={66}, DOI={10.1590/S0103-90162009000500016}, number={5}, journal={Scientia Agricola}, author={Buol, S. W.}, year={2009}, pages={697–707} }
 @article{sanchez_palm_buol_2003, title={Fertility capability soil classification: a tool to help assess soil quality in the tropics}, volume={114}, DOI={10.1016/S0016-7061(03)00040-5}, number={3-4}, journal={Geoderma}, author={Sanchez, P. A. and Palm, C. A. and Buol, S. W.}, year={2003}, pages={157–185} }
 @book{soil genesis and classification (5th ed.)_2003, ISBN={0813828732}, publisher={Ames: Iowa State Press}, year={2003} }
 @article{buol_eswaran_2000, title={Oxisols}, volume={68}, DOI={10.1016/s0065-2113(08)60845-7}, number={2000}, journal={Advances in Agronomy}, author={Buol, S. W. and Eswaran, H.}, year={2000}, pages={151–195} }
 @article{buol_amoozegar_vepraskas_2000, title={Physical, chemical and morphological properties of some Regoliths in North Carolina}, volume={39}, number={3/4}, journal={Southeastern Geology}, author={Buol, S. and Amoozegar, A. and Vepraskas, M. J.}, year={2000}, pages={151} }
 @article{beck_robarge_buol_1999, title={Phosphorus retention and release of anions and organic carbon by two Andisols}, volume={50}, DOI={10.1046/j.1365-2389.1999.00213.x}, number={1}, journal={European Journal of Soil Science}, author={Beck, M. A. and Robarge, W. P. and Buol, S. W.}, year={1999}, pages={157–164} }
 @misc{buol_kamprath_1998, title={A comparison of the contributions of clay, silt, and organic matter to the effective CEC of soils in sub-Saharan Africa}, volume={163}, DOI={10.1097/00010694-199806000-00009}, number={6}, journal={Soil Science}, author={Buol, S. and Kamprath, E. J.}, year={1998}, pages={508–509} }
 @article{pittillo_hatcher_buol_1998, title={Introduction to the environment and vegetation of the southern Blue Ridge province}, volume={63}, number={3}, journal={Castanea}, author={Pittillo, J. D. and Hatcher, R. D. and Buol, S. W.}, year={1998}, pages={202–216} }
 @inbook{buol_cook_1998, title={Red and lateritic soils of the world: Concept, potential, constraints, and challenges}, booktitle={Red & lateritic soils}, publisher={Rotterdam: Brookfield}, author={Buol, S. W. and Cook, M. G.}, editor={J. Sehgal, W. E. Blum and K. S. Gajbhiye, K. S.Editors}, year={1998}, pages={49–56} }
 @article{osher_buol_1998, title={Relationship of soil properties to parent material and landscape position in eastern Madre de Dios, Peru}, volume={83}, DOI={10.1016/S0016-7061(97)00133-X}, number={1-2}, journal={Geoderma}, author={Osher, L. J. and Buol, S. W.}, year={1998}, pages={143–166} }
 @inproceedings{buol_1997, title={Overview of Kandi and other taxonomic changes in North Carolina}, booktitle={Soil Science Society of North Carolina proceedings, 40th}, publisher={Raleigh, N.C.: Soil Science Society of North Carolina}, author={Buol, S. W.}, year={1997} }
 @book{buol_hole_mccracken_southard_1997, title={Soil genesis and classification (4th ed.)}, ISBN={081381460X}, publisher={Ames: Iowa State University Press}, author={Buol, S. W. and Hole, F. D. and McCracken, R. J. and Southard, R. J.}, year={1997} }
 @article{schmidt_buol_kamprath_1997, title={Soil phosphorus dynamics during 17 years of continuous cultivation: a method to estimate long-term P availability}, volume={78}, DOI={10.1016/S0016-7061(97)00011-6}, number={1-2}, journal={Geoderma}, author={Schmidt, J. P. and Buol, S. W. and Kamprath, E. J.}, year={1997}, pages={59–70} }
 @inproceedings{buol_stokes_1997, title={Soil profile alteration under long-term, high-input agriculture}, booktitle={Replenishing soil fertility in Africa. Proceedings of an international symposium cosponsored by Divisions A-6 (International Agronomy) and S-4 (Soil Fertility and Plant Nutrition), and the International Center for Research in Agroforestry, held at the 88th Annual Meetings of the American Society of Agronomy and the Soil Science Society of America, Indianapolis, Indiana, 6 November 1996. Ed. by Roland J. Buresh, Pedro A. Sanchez, and Frank Calhoun. Madison, WI.: Soil Science Society of America, 1997}, author={Buol, S. W. and Stokes, M. L.}, year={1997}, pages={97–109} }
 @article{li_amoozegar_robarge_buol_1997, title={Water movement and solute transport through saprolite}, volume={61}, DOI={10.2136/sssaj1997.03615995006100060027x}, number={6}, journal={Soil Science Society of America Journal}, author={Li, K. and Amoozegar, A. and Robarge, W. P. and Buol, S. W.}, year={1997}, pages={1738-} }
 @article{buol_1995, title={Sustainability of soil use}, volume={26}, DOI={10.1146/annurev.es.26.110195.000325}, journal={Annual Review of Ecology and Systematics}, author={Buol, S. W.}, year={1995}, pages={25} }
 @article{buol_weed_1991, title={Saprolite-soil transformations in the Piedmont and Mountains of North Carolina}, volume={51}, DOI={10.1016/0016-7061(91)90064-Z}, number={1-4}, journal={Geoderma}, author={Buol, S. W. and Weed, S. B.}, year={1991}, pages={15} }
 @book{buol_hole_mccracken_1989, title={Soil genesis and classification (3rd ed.)}, ISBN={0813814626}, publisher={Ames: Iowa State University Press}, author={Buol, S. W. and Hole, F. D. and McCracken, R. J.}, year={1989} }
 @book{buol_hole_mccracken_1980, title={Soil genesis and classification (2nd ed.)}, ISBN={081381460X}, publisher={Ames: Iowa State University Press}, author={Buol, S. W. and Hole, F. D. and McCracken, R. J.}, year={1980} }
 @book{buol_hole_mccracken_1973, title={Soil genesis and classification (1st ed.)}, ISBN={081381460X}, publisher={Ames: Iowa State University Press}, author={Buol, S. W. and Hole, F. D. and McCracken, R. J.}, year={1973} }