Von Bulow, Joachim F.W., Jack R. Harlan, Gilbert Fletscher, and Johannes M.J. de Wet. 1994. “Morphology and Combining Ability Studies of Maize Populations Recovered from the Intergeneric Cross Zea X Tripsacum”. Pesquisa Agropecuaria Brasileira 29 (7): 989-1006. https://doi.org/10.1590/S1678-3921.pab1994.v29.4154.