%0 Journal Article %A S. A. Kheifets %A N. N. Sveshnikov %T Synthesis and certain reactions of $\beta$-alkoxy substituted polymethinhemicyanine dyes %J Doklady Akademii Nauk %D 1965 %P 1177-1180 %V 163 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1965_163_5_a33/ %G ru %F DAN_1965_163_5_a33