1. Yeasts: Characteristics and Identification;Barnett,1990
2. Beziehungen zwischen Hefenart, Hefenkeimzahl und hefenbedingten sensorischen Fehlern in Magerquark nach Zugabe definierter Hefenarten;Engel;Milk Science International,1987
3. Yeasts in dairy products: A review;Fleet;Journal of Applied Bacteriology,1990
4. Geiges O and Spillmann H (1994) Yeast flora of commercial kefir and kefir cultures. Proceedings of the 24th International Dairy Congress, p. 403. Melbourne, VIC, Australia.
5. Yeasts and their possible beneficial and negative effects on the quality of dairy products;Jakobsen;International Dairy Journal,1996