Mycotoxins and phycotoxins: a collection of invited papers presented at the International symposium held at South Africa, 22-25 July, 1985 P.S. Steyn, R. Vleggaar. - International IUPAC Symposium on Mycotoxins and Phycotoxins (6th: 1985: South Africa) (Amsterdam Elsevier, 1986)