%0 Journal Article %A I. S. Mustafin %A L. O. Matveev %A E. A. Kashkovskaya %T On the question of how the colour of organic compounds is affected by their internal hydrogen bonds %J Doklady Akademii Nauk %D 1957 %P 610-613 %V 113 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1957_113_3_a33/ %G ru %F DAN_1957_113_3_a33