Oliveira, A. M.; Sudo, S. Competition Between Populations of Bean Weevils Zabrotes Subfasciatus Bohemann, 1833 and Acanthoscelides Obtectus Say, 1831 Feeding on the Same Food Source (Col., Bruchidae). An. Soc. Entomol. Bras. 1979, 8, 57-62.