1. Transition and gap models of forest dynamics;Acevedo;Ecol. Appl.,1995
2. Aleinikova, M.M., Porfiriev, V.C., Utrobina, N.M., 1979. Plot structure of Spruce-broad-leaf Forests in the East of European Part of USSR (Volzhosko-kamskii Reserve). Nauka, Moscow (in Russian).
3. Anonymous, 1997. Silvicultural and protective rules in forest ecosystems of the Forest Promotional Complex ‘Białowieża Primeval Forest’. Białystok: Regional Board of State Forest in Białystok (in Polish).
4. Influence of microtopography and canopy species on spatial patterns of forest understory plants;Beatty;Ecology,1984
5. Bitterlich, W., 1947. Die Winkelzählmessung, Allgemeinne Forst-und Holzwirtschaftliche Zeitung. Wien, 12/13.