%0 Journal Article %A V. K. Kalantarov %A O. A. Ladyzhenskaya %T The occurrence of collapse for quasilinear equations of parabolic and hyperbolic types %J Zapiski Nauchnykh Seminarov POMI %D 1977 %P 77-102 %V 69 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1977_69_a5/ %G ru %F ZNSL_1977_69_a5