1. Adler, T., 1977, Lignin chemistry—past, present and future, Wood Sci. Technol. 11:169–218.
2. Alexander, M., 1973, Nonbiodegradable and other recalcitrant molecules, Biotechnol. Bioeng. 15:611–647.
3. Alexander, M., 1975, Environmental and microbiological problems arising from recalcitrant molecules, Microb. Ecol. 2:17–27.
4. Ander, P., and Eriksson, K. -E., 1976, The importance of phenol oxidase activity in lignin degradation by the white-rot fungus Sporotrichum pulverulentum, Arch. Microbiol 109:18.
5. Ander, P., and Eriksson, K. -E., 1978, Lignin degradation and utilization by microorganisms, in: Progress in Industrial Microbiology, Vol. 14 (M. J. Bull, ed.) pp. 1–38 Elsevier, Amsterdam.