Ferreira, M.F. da S. et al. 2011. QTLs for resistance to soybean cyst nematode, races 3, 9, and 14 in cultivar Hartwig. Pesquisa Agropecuaria Brasileira. 46, 4 (Jun. 2011), 420–428. DOI:https://doi.org/10.1590/S1678-3921.pab2011.v46.9741.