Contamination potential by Aflatoxin B1 in commercialized corn in Bastos - SP region - Abreu, A. P. N; Spers, Rodolfo Cláudio; Matias, Fernando Costa; Godoy, M. M; Spers, Aleksandrs; Pinto, C. A (International IUPAC Symposium on Mycotoxins and Phycotoxins, 2000)