1. Anonymus: Bacteria that degrade lignin are isolated. Chem. Eng. News 8, (Nov. 21, 1977)
2. Cartwright, N. J., Holdom, K. S.: Enzymic lignin, its release and utilization by bacteria. Microbios 8, 7?14 (1973)
3. Crawford, R. L., Mc Coy, E., Harkin, J. M., Kirk, T. K., Obst, J. R.: Degradation of methoxylated benzoic acids by a Nocardia from a ligninrich environment: Significance to lignin degradation and effect of chloro substituents. Appl. Microbiol. 26, 176?184 (1973)
4. Deutsche Sammlung von Mikroorganismen: Catalogue of strains (D. Claus, C. Schaab-Engels, eds.). M�nchen: Gesellsch. f. Strahlen-u. Umweltforschung mbH 1977
5. Fukuzumi, T., Katayama, Y.: Bacterial degradation of dimer relating to structure of lignin. I. ?-Hydroxypropiovanilline and coniferylalcohol as initial degradation products from guaiacylglycerol-?-coniferylether by Pseudomonas putida. Mokuzai Gakkaishi 23, 214?215 (1977)