TY - JOUR AU - M. M. Lavrent'ev TI - On Cauchy problem for linear elliptical equations of the second order JO - Doklady Akademii Nauk PY - 1957 SP - 195 EP - 197 VL - 112 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1957_112_2_a3/ LA - ru ID - DAN_1957_112_2_a3 ER -