1. Bedoshvili, D.O. 1985a. Groups of associated species in the plant communities of the alpine meadows in the Kazbegi region (Central Caucasus). Bot. Zh. 70: 1523–1528 (in Russian).
2. Bedoshvili, D.O. 1985b. An attempt at classifying the alpine meadow vegetation of the Caucasus using groups of associated species (as exemplified by the Kazbegi region). Bot. Zh. 70: 1605–1613 (in Russian).
3. Belsky, A.J. 1987. Revegetation of natural and human-caused disturbances in the Serengeti National Park, Tanzania. Vegetatio 70: 51–60.
4. Belsky, A.J. 1988. Regional influences on small-scale vegetational heterogeneity within grasslands in the Seregeti National Park, Tanzania. Vegetatio 74: 3–10.
5. Collins, S.L. & Barber, S.C. 1985. Effect of disturbance on diversity in mixed-grass prairie. Vegetatio 64: 87–94.