1. S. N. Grove, “The Filamentous Fungi,” Vol. III, ed. by J. E. Smith and D. R. Berry, Academic Press, London and New York, 1978, p. 28.
2. R. Spiro, “Methods in Enzymology,” Vol. VIII, ed. by E. F. Neufeld and V. Ginsburg, Academic Press Inc., New York, N. Y., 1966, p. 10.