1. T.D. Brock, Thermophilic Microorganisms and Life at High Temperatures, Springer-Verlag (1978) 465 pp.
2. M.A. Innis, D.H. Gelfand, J.J. Sinsky and T.J. White (eds.), PCR Protocols: A Guide to Methods and Applications, Academic Press, San Diego (1990) 482 pp.
3. L.R. Lynd, H.E. Grethlen and R.H. Wolkin, Appl. Environ. Microbiol. 55 (1989) 3131.
4. G.E. Slapack, I. Russell and G.G. Stewart, Thermophilic Microbes in Ethanol Production, CRC Press, Florida (1987) 186 pp.
5. M. Oka, Y.-S. Yang, S. Nagata, N. Esaki, H. Tanaka and K. Soda, Biotechnol. Appl. Biochem. 11 (1989) 307.