@inbook{schmitt_koenning_barker_2004, title={Population density based management}, booktitle={Biology and management of the soybean cyst nematode  (2nd ed.)}, publisher={Weinheim: Wiley-VCH}, author={Schmitt, D. P. and Koenning, S. R. and Barker, K. R.}, editor={R. D. Riggs and Wrather, J. A.Editors}, year={2004}, pages={89–110} }
 @article{niblack_arelli_noel_opperman_ore_schmitt_shannon_tylka_2002, title={A revised classification scheme for genetically diverse populations of Heterodera glycines}, volume={34}, number={4}, journal={Journal of Nematology}, author={Niblack, T. L. and Arelli, P. R. and Noel, G. R. and Opperman, C. H. and Ore, J. H. and Schmitt, D. P. and Shannon, J. G. and Tylka, G. L.}, year={2002}, pages={279–288} }
 @article{koenning_coble_bradley_barker_schmitt_1998, title={Effects of a low rate, of aldicarb on soybean and associated pest interactions in fields infested with Heterodera glycines}, volume={28}, number={2}, journal={Nematropica}, author={Koenning, S. R. and Coble, H. D. and Bradley, J. R. and Barker, K. R. and Schmitt, D. P.}, year={1998}, pages={205–211} }
 @article{koenning_bailey_schmitt_barker_1998, title={Management of plant-parastic nematodes on peanut with selected nematicides in North Carolina}, volume={30}, number={4 suppl.}, journal={Journal of Nematology}, author={Koenning, S. R. and Bailey, J. E. and Schmitt, D. P. and Barker, K. R.}, year={1998}, pages={643–650} }
 @article{riggs_schmitt_mauromoustakos_1997, title={Comparison of extraction and shipping methods for cysts and juveniles of Heterodera glycines}, volume={29}, number={1}, journal={Journal of Nematology}, author={Riggs, R. D. and Schmitt, D. P. and Mauromoustakos, A.}, year={1997}, pages={127–132} }
 @article{schmitt_1991, title={Management of Heterodera glycines by cropping and cultural practices}, volume={23}, number={3}, journal={Journal of Nematology}, author={Schmitt, D. P.}, year={1991}, pages={348} }
 @article{schmitt_barker_noe_koenning_1990, title={Repeated sampling to determine the precision of estimating nematode population densities}, volume={22}, number={4}, journal={Journal of Nematology}, author={Schmitt, D. P. and Barker, K. R. and Noe, J. P. and Koenning, S. R.}, year={1990}, pages={552} }
 @article{schmitt_1989, title={Effect of soil pH on nematicide efficacy on soyabean}, volume={21}, number={4}, journal={Journal of Nematology}, author={Schmitt, D. P.}, year={1989}, pages={615} }
 @article{schmitt_riggs_1989, title={Population dynamics and management of Heterodera glycines}, volume={3}, journal={Agricultural Zoology Reviews}, author={Schmitt, D. P. and Riggs, R. D.}, year={1989}, pages={253} }