1. Allison, J. S. & R. I. L. Smith, 1973. The vegetation of Elephant Island, South Shetland Island. Bull. br. antarct. Surv. 33 & 34: 185?212.
2. Broady, P. A., 1977a. The Signy Island terrestrial reference sites, VII. The ecology of the algae of Site 1, a moss turf. Bull. br. antarct. Surv. 45: 47?62.
3. Broady, P. A., 1977b. The Signy Island terrestrial reference sites, IX. The ecology of the algae at Site 2, a moss carpet. Bull. br. antarct. Surv. 47: 13?29.
4. Broady, P. A., 1979a. Feeding studies on the collembolan Cryptopygus antarcticus Willem at Signy Island, South Orkney Islands. Bull. br. antarct. Surv. 48: 37?46.
5. Broady, P. A., 1979b. The terrestrial algae of Signy Island, South Orkney Islands. Br. antarct. Surv. Sci. Rep. 98, 117 pp.