1. Aitken, R. A., Eddy, B. P., Ingram, M. &Weurman, C. (1956). The action of culture filtrates of the fungusMyrothecium verrucaria onβ-glucosans.Biochem. J. 64; 63–70.
2. Angel, H. R., Walker, J. C. &Link, K. P. (1930). Relation of protocatechuic acid to disease resistance in the onion.Phytopathology 20; 431.
3. Byrde, R. J. W., Fielding, A. H. &Williams, A. H. (1959) in ‘Phenolics in Health and Disease-Proceedings in Plant Phenolics’. Ed. byPridham, J. B. Pergamon Press.
4. Elliott, D. C. (1959) in ‘Data for Biochemical Research’,Dawson, R. M. C., Elliott, D. C., Elliott, W. H. &Jones, K. M. eds., p. 237, Oxford University Press.
5. Gilligan, W. &Reese, E. T. (1954) Evidence for multiple components in microbiol cellulases.Canad. J. Microbiol. I:90–107.