Szukana fraza: [Bibliografia = "24. Roo\-Zielinska E., Solon J., 1998a, Geographical differentiation of the floristic composition and structure of the herb layer of forest permanent plots in East Germany, Poland and Belarus, \[w\:\] Proceedings of the International Symposium on Air Pollution and Climate Change Effects on Forest Ecosystems, February 5–9, 1996, Riverside, California, General Technical Report, PSIO\-GTR, 164,U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, Portland, OR, s. 151–160."]