%0 Journal Article %A G. I. Khil'kevich %T An analogue of Saint-Venant's principle, the Cauchy problem and the first boundary-value problem in an~unbounded domain for pseudo-parabolic equations %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1981 %P 252-253 %V 36 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1981_36_3_a12/ %G en %F RM_1981_36_3_a12