Search for: [Subject and Keywords = Norway spruce] OR [Subject and Keywords = Picea abies] OR [Subject and Keywords = variability of cones] OR [Subject and Keywords = Picea abies] OR [Subject and Keywords = zmienność szyszek] OR [Subject and Keywords = szyszki świerka] OR [Title = Variability of Picea abies \(L.\) Karst. cones in Poland] OR [Creator = Chylarecki, Henryk] OR [Creator = Giertych, Maciej]