TY - JOUR AU - B. W. Schulze TI - Potentials for higher order elliptic equations, and inverse problems JO - Differencialʹnye uravneniâ PY - 1976 SP - 148 EP - 158 VL - 12 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1976_12_1_a18/ LA - ru ID - DE_1976_12_1_a18 ER -