Tonet, G. L. and da Silva, R. F. (1994) “Antibiosis of wheat genotypes to C biotypes of <i>Schizaphis graminum</i> (Rondani, 1852) (Homoptera: Aphididae)”, Pesquisa Agropecuaria Brasileira, 29(8), pp. 1181–1186. doi: 10.1590/S1678-3921.pab1994.v29.4162.