1. Anderson, E., Martin, P. A. (1975). The sporulation and mating of brewing yeasts. J. Inst. Brew. 81:242–247.
2. Barney, M. C., Jansen, G. P., Halbert, J. R. (1980). Use of spheroplast fusion and genetic transformation to introduce dextrin utilization into Saccharomyces uvarum. Amer. Soc. Brew. Chem. J. 38:1–5.
3. Becher, D., Böttcher, F. (1980). Hybridization of Rhodosporidum toruloides by protoplast fusion. In: Advances in Protoplast Research, edited by L. Ferenczy, G. L. Farkas. Budapest: Akadémiai Kiadó, Oxford: Pergamon Press, pp. 105–111.
4. Bernardi, G. (1979). Petite mutation in yeasts. Trends Biochem. Sci. 4:197–201.
5. Böttcher, F., Becher, D., Klinner, U., Samsonova, I. A., Schiiowa, B. (1980). Genetic structure of yeast hybrids constructed by protoplast fusion. In: Advances in Protoplast Research, edited by L. Ferenczy, G. L. Farkas. Budapest: Akadémiai Kiadó, Oxford: Pergamon Press, pp. 99–104.