%0 Journal Article %A È. V. Frisman %A È. N. Arkhipova %T The birefringence sign in a flow as influenced by the concentration of the polymer solution %J Doklady Akademii Nauk %D 1957 %P 491-493 %V 115 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1957_115_3_a18/ %G ru %F DAN_1957_115_3_a18