%0 Journal Article %A T. V. Shamraevskaya %A N. A. Shchegolevskaya %A S. I. Sokolov %T Change of birefringence sign following deformation in vitreous polymers %J Doklady Akademii Nauk %D 1963 %P 356-358 %V 150 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_150_2_a35/ %G ru %F DAN_1963_150_2_a35