1. Bengtson JL, Laws RM (1985) Trends in crabeater seal age at maturity: an insight into antarctic marine interactions. In: Siegfried WR, Condy PR, Laws RM (eds) Antarctic nutrient cycles and food webs. Springer, Berlin Heidelberg New York, p 669
2. Benninghoff WS, Bonner WN (1985) Man’s impact on the antarctic environment: a procedure for evaluating impacts from scientific and logistic activities. Scientific Committee on Antarctic Research, Scott Polar Research Institute, Lensfield Road, Cambridge
3. Burrough PA (1986) Principles of geographic information systems for land resources management. Oxford Science Publications, Oxford University Press, Oxford, England (Monograph on Soils and Resources Survey, No 12)
4. Cairns J, Jr, Patil GP, Waters WE (1979) Environmental bio-monitoring, assessment, prediction, and management—certain case studies and related quantitative issues. International Cooperative Publishing House, Fairland, Maryland
5. Callahan JT (1984) Long-term ecological research. Bioscience 34(6): 363–367