YURTSEVER, Selcuk - SAL, Goknur. Population genetics of Philaenus spumarius (Homoptera, Cercopidae) on the Istranca Mts: phenotypic diversity, allele frequency and sex ratio. In Biologia. Section A. Section B. Section C, Botany. Zoology. Cellular and molecular biology. ISSN 0006-3088. ISSN 1335-6372. ISSN 1335-6380. ISSN 1335-6399. Bratislava : Slovak Academic Press, 2003, vol. 58, no. 5, s. 929-934.