1. Gerson, D. F., Zajic, J. E.: Process Biochem. 10, 20 (1979)
2. Layman, P. L.: Chem. Eng. News 60, 13 (1982)
3. Diekmann, H.: Nukleotid-Fermentationen mit Brevibacterium ammoniagenes, in: Fermentation (ed. Lafferty, R. M.) p. 121, Wien: Springer Verlag 1981
4. Bartha, R., Atlas, R. M.: Adv. Appl. Microbiol. 22, 225 (1977)
5. Cooney, J. J., Summers, R. J.: Hydrocarbon-using microorganisms in three freshwater ecosystems, in: Proc. of the IIIrd Intern. Biodegr. Symp. (eds. Sharpley, J. M., Kaplan, A. M.) p. 141, London: Applied Sciences Publishers 1976