1. Alder, H. L., Roessler, E. B.: Introduction to probability and statistics, 4th ed. San Francisco: W. H. Freeman & Co. 1968.
2. Andrewartha, H. G., Birch, L. C.: The distribution and abundance of animals. Chicago: Chicago University Press 1954.
3. Auer, C.: Ergebnisse zwölfjähriger quantitativer Untersuchungen der Populationsbewegungen des Grauen Lärchenwicklers Zeiraphera griseana Hb. (=diniana Guenee) in Oberengadin (1949?1960). Mitt. schweiz. Anst. Forstl. VersWes. 37, 175?263 (1961).
4. Bey-Bienko, G. Ya.: On some regularities in the changes of the invertebrate fauna during the utilization of virgin steppe (in Russian with English summary). Rev. Ent. U.R.S.S. 40, 763?775 (1961).
5. Brown, W. J.: Notes on the extralimital distribution of some species of Coleoptera. Can. Ent. 99, 85?93 (1967).