Please use the following format to cite the selected article:

Giefing D. , Pazdrowski W. , Jelonek T. , Tomczak A. , Kupczyk G. 2008. CYCLICAL WOOD HETEROGENEITY OF NORWAY SPRUCE Picea abies (L) Karst. ON STEM PROFILES OF TREES FROM DIFFERENT SOCIAL POSITIONS IN STANDS OF AGE CLASS IV, EJPAU 11(1), #10.