1. Alldredge, A. L., 1982. Aggregation of spawning appendicularians in surface windrows. Bull. mar. Sci. 32: 250?254.
2. Allen, T. F. H. & T. B. Starr, 1982. Hierarchy ? perspectives for ecological complexity. Univ. Chicago Press, Chicago.
3. Allen, T. F. H. & T. W. Hoekstra, 1991. Role of heterogeneity in scaling of ecological systems under analysis. In Kolasa, J. & S. T. A. Pickett (eds). Ecological heterogeneity. Springer-Verlag, New York. 3: 47?68.
4. Amanieu, M., P. Legendre, M. Trousselier & G. F. Frisoni, 1989. Le programme Ecothau: Théorie écologique et base de la modélisation. Oceanolog. Acta 12: 189?199.
5. Anderson, R. M., D. M. Gordon, M. J. Crawley & M. P. Hassell, 1982. Variability in the abundance of animal and plant species. Nature (Lond.) 296: 245?248.