1. Burkholder, W. H., and W. L. Smith. 1949.Erwinia atroseptica (van Hall) Jennison andErwinia carotovora (Jones) Holland. Phytopathology 39: 887–897.
2. Dye, D. W. 1968. A taxonomic study of the genusErwinia. I. The “amylovora” group. N Z J Sci 11: 590–607.
3. Graham, D. C., and J. L. Hardie. 1971 Prospects for control of potato blackleg disease by the use of stem cuttings. Proc 6th Br Insectic Fungic Conf, pp.219–224.
4. Graham, D. C., C. E. Quinn and M. D. Harrison 1976. Recurrence of soft rot coliform bacterial infections in potato stem cuttings: an epidemiological study on the central nuclear stock production farm in Scotland 1967–1974. Potato Res 19: 3–20.
5. Hingorani, M. K., and S. K. Addy. 1952. A comparative study ofErwinia carotovora, Erwinia aroideae andErwinia atroseptica. Indian Phytopathology 5: 40–43.