%0 Journal Article %A O. V. Zaǐtseva %T Conditions for the well-posedness of the Cauchy problem for a~model nonstrictly hyperbolic equation %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1987 %P 43-45 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1987_12_a6/ %G ru %F IVM_1987_12_a6