1. Björkman, A. (1956) Studies on finely divided wood. Part I. Extraction of lignin with neutral solvents. Svensk Papperstidning 59, 477–485
2. Bonse, G., Metzler, M. (1978) Biotransformationen organischer Fremdsubstanzen. G. Thieme Verlag, Stuttgart
3. Bristol, D.W., Ghanuni, A.M., Oleson, A.E. (1977) Metabolism of 2,4-dichlorophenoxyacetic acid by wheat cell suspension cultures. J. Agric. Food Chem. 25, 1308–1314
4. Casida, J.E., Lykken, L. (1969) Metabolism of organic pesticide chemicals in higher plants. Annu. Rev. Plant Physiol. 20, 607–636
5. Chang, H.-M., Allan, G.G. (1971) Oxidation. In: Lignins. Occurrence, formation, structure and reactions, Sarkanen, K.V., Ludwig, C.H., eds., pp. 433–485, Wiley-Interscience, New York