%0 Journal Article %A A. I. Felzenbaum %T On extension of the theory of steady currents in a shallow sea to the case where the coefficient of vertical exchange is a variable %J Doklady Akademii Nauk %D 1957 %P 86-89 %V 113 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1957_113_1_a21/ %G ru %F DAN_1957_113_1_a21