TY - JOUR AU - È. V. Frisman AU - È. N. Arkhipova TI - The birefringence sign in a flow as influenced by the concentration of the polymer solution JO - Doklady Akademii Nauk PY - 1957 SP - 491 EP - 493 VL - 115 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1957_115_3_a18/ LA - ru ID - DAN_1957_115_3_a18 ER -