TY - JOUR AU - L. A. Aksent'ev TI - Construction of the Schwarz operator by the symmetry method JO - Trudy seminara po kraevym zadačam PY - 1966 SP - 11 EP - 24 VL - 3 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KUKZ_1966_3_3_a1/ LA - ru ID - KUKZ_1966_3_3_a1 ER -