1. Dimitrov M, Nikolcheva M, Engibarova R, Drenska E, Popova T. Species appurtenance of fungae of the genus Fusarium isolated from wheat, maize and bean seed. Plant Science 1983; 20: 120–25 (in Bulg.).
2. Nenov P, Dimitrov M, Popova T, Nikolcheva M, Chelebieva I, Bogatinova M, Romanova S. Mycological investigation of Bulgarian wheat from the 1987, 1988 and 1989 crop years. The man and his environment 1992; 15: 1–6 (in Bulg.).
3. Pohland AE, Wood GE. In: Krogh P, ed. Mycotoxins in food. London: Academic Press, 1987, 49–54.
4. Tanaka T, Hasegawa A, Yamamoto S, Lee US, Sugiura Y, Ueno Y. Worldwide contamination of cereals by the Fusarium mycotoxins nivalenol, deoxynivalenol, and zearalenone. J Agric Food Chem 1988; 36: 979–83.
5. Ueno, Y. The toxicology of mycotoxins. In: Golberg L, ed. CRC Critical reviews in toxicology. Florida: CRC Press, 1985; 14: 99–132.