1. Austin, M. P., 1980. Searching for a model for use in vegetation analysis. Vegetatio 42: 11?21.
2. Austin, M. P., 1981. The role of certain diversity properties in vegetation classification. In: A. N., Gillison & D. J., Anderson (eds.). Vegetation classification in Australia, p. 125?140. SCIRO, Canberra.
3. Benninghoff, W. S. & Southworth, W. C., 1964. Ordering of tabular arrays of phytosociological data by digital computer. Abstr. 10. Int. Bot. Congr. Edinburgh: 331?332.
4. Böttcher, H., 1968. Die Artenzahl-Kurve, ein einfaches Hilfsmittel zur Beurteilung der Homogenität pflazensoziologischer Tabellen. Mitt. Flor.-soz. Arbeitsgem. NF. 13: 225?226.
5. ?e?ka, A. & Roemer, H., 1971. A computer program for identifying species-relevé-groups in vegetation studies. Vegetatio: 225?276.