TY - JOUR AU - V. N. Zhigulev TI - The theory of the ``return'' layer JO - Doklady Akademii Nauk PY - 1960 SP - 1313 EP - 1316 VL - 134 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1960_134_6_a12/ LA - ru ID - DAN_1960_134_6_a12 ER -