%0 Journal Article %A E. V. Radkevich %T The dynamic angle problem for the Verigin--Muskat problem %J Doklady Akademii Nauk %D 1992 %P 746-750 %V 324 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1992_324_4_a5/ %G ru %F DAN_1992_324_4_a5