TY - JOUR AU - A. M. Shikhvatov TI - A coordinate system for closed shells of revolution JO - Differencialʹnye uravneniâ PY - 1984 SP - 1459 EP - 1461 VL - 20 IS - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1984_20_8_a32/ LA - ru ID - DE_1984_20_8_a32 ER -