1. J. A. Barnett, R. W. Payne, and D. Yarrow, “Yeasts: Characteristics and Identification,” 2nd Ed., Cambridge University Press, Cambridge, 1990.
2. “The Yeasts, a Taxonomic Study,” 3rd Ed., ed. by N. J. W. Kreger-van Rij (ed.), Elsevier, Amsterdam, 1984.