1. C. Anthony, in “The Biochemistry of Methylotrophs,” Academic Press, London, 1982, pp. 1–41.
2. I. Nagai, I. Terao, and T. Urakami,Bioindustry(in Japanese),4, 97–106 (1987).
3. S. Kinoshita, in “Biology of Industrial Microorganisms,” ed. by A. L. Demain and N. A. Solomon, The Benjamin/Cummings Publishing Company, California, 1985, pp. 115–142.