“LIFE HISTORY AND DEMOGRAPHIC PARAMETERS OF APHIS FABAE (HEMIPTERA: APHIDIDAE) AND ITS PARASITOID, APHIDIUS MATRICARIAE (HYMENOPTERA: APHIDIIDAE) ON FOUR SUGAR BEET CULTIVARS”. 2010. Acta Entomologica Serbica 15 (1): 61-73. http://147.91.73.126/index.php/aes/article/view/114.