%0 Journal Article %A Z. P. Sytnik %A L. D. Zhilina %A È. B. Lifshits %T Merocyanin dyes with electron releasing substituents in the polymethyn chain %J Doklady Akademii Nauk %D 1957 %P 343-346 %V 114 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1957_114_2_a23/ %G ru %F DAN_1957_114_2_a23