Please use the following format to cite the selected article:

Chrzanowski G. , Ciepiela A. , Sprawka I. , Sempruch C. , Sytykiewicz H. , Czerniewicz P. 2003. ACTIVITY OF POLYPHENOLOXIDASE IN THE EARS OF SPRING WHEAT AND TRITICALE INFESTED BY GRAIN APHID (Sitobion avenae /F./), EJPAU 6(2), #04.