TY - JOUR AU - L. S. Zagainov TI - The unrestricted applicability of Chaplygin's theorem on differential inequalities to the solution of the first boundary-value problem for equations of elliptic type JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1958 SP - 96 EP - 98 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1958_3_a11/ LA - ru ID - IVM_1958_3_a11 ER -