%0 Journal Article %A G. G. Tsypkin %T The formation of two moving boundaries of phase transitions during %J Doklady Akademii Nauk %D 1992 %P 52-57 %V 323 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1992_323_1_a9/ %G ru %F DAN_1992_323_1_a9