1. Akiyoshi, D. E., Morris, R. O., Hinz, R., Mischke, B. S., Kosuge, T., Garfinkel, D. J., Gordon, M. P., Nester, E. W., 1983: Cytokinin/auxin balance in crown gall tumors is regulated by specific loci in the T-DNA. Proc. Nat. Acad. Sci. U. S. A. 80, 407–411.
2. Amasino, R. M., Miller, C. O., 1982: Hormonal control of tobacco crown gall tumor morphology. Plant Physiol. 69, 389–392.
3. Atsumi, S., 1980: Relation between auxin autotrophy and tryptophan content in sunflower crown gall cells in culture. Plant Cell Physiol. 21, 1031–1039.
4. Atsumi, S., Hayashi, T., 1978: The relationship between auxin concentration, auxin protection and auxin destruction in crown gall cells cultured in vitro. Plant Cell Physiol. 19, 1391–1397.
5. Armstrong, D. J., Scarbrough, E., Skoog, F., Cole, D. L., Leonard, N. J., 1976: Cytokinins in Corynebacterium fascians cultures. Isolation and identification of 6-(4-hydroxy-3-methyl-cis-2-butenylamino)-2-methylthiopurine. Plant Physiol. 58, 749–752.