Marchenko, A., V. Strashnyuk, and V. Kakpakov. “EFFECTS OF PREPARATION VESB, CONTAINING 20OH-ECDYSTERONE, ON LEVEL OF POLYTENY OF GIANT CHROMOSOMES IN DROSOPHILA MELANOGASTER MEIG. DEPENDING ON GENOTYPE”. The Journal of V.N.Karazin Kharkiv National University. Series «Biology», Vol. 1, no. 709, Dec. 2005, pp. 91-97, https://periodicals.karazin.ua/biology/article/view/165.