%0 Journal Article %A A. A. Martirosyan %A V. N. Agabekyan %A P. A. Grigoryan %T X-ray investigations of crystalline phase in polyethilentereftalat supermolecular structure influenced by the thermal, radiation and magnetic effects %J Proceedings of the Yerevan State University. Physical and mathematical sciences %D 2003 %P 59-64 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZERU_2003_1_a7/ %G ru %F UZERU_2003_1_a7