Authors: Dill-Macky, R Roelfs, AP

Citation: R. Dill-macky et Ap. Roelfs, The effect of stand density on the development off Puccinia graminis f. sptritici in barley, PLANT DIS, 84(1), 2000, pp. 29-34

Authors: Barcellos, AL Roelfs, AP de Moraes-Fernandes, MIB

Citation: Al. Barcellos et al., Inheritance of adult plant leaf rust resistance in the Brazilian wheat cultivar Toropi, PLANT DIS, 84(1), 2000, pp. 90-93

Authors: McCallum, BD Roelfs, AP Szabo, LJ Groth, JV

Citation: Bd. Mccallum et al., Comparison of Puccinia graminis f.sp tritici from South America and Europe, PLANT PATH, 48(5), 1999, pp. 574-581