TY - JOUR AU - T. G. Pletneva AU - S. D. Ăˆidel'man TI - Three cylinder theorems for the solutions of quasielliptic linear evolution equations JO - Doklady Akademii Nauk PY - 1970 SP - 507 EP - 510 VL - 192 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1970_192_3_a7/ LA - ru ID - DAN_1970_192_3_a7 ER -