%0 Journal Article %A O. F. Vasiliev %T Approximation equations for the oscillations of water and ship in the chamber of ship lifts and sluices %J Doklady Akademii Nauk %D 1961 %P 1309-1312 %V 138 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_138_6_a15/ %G ru %F DAN_1961_138_6_a15