TY - JOUR AU - A. P. Kiselev TI - Electromagnetic field in a neighborhood of a focus JO - Zapiski Nauchnykh Seminarov POMI PY - 1976 SP - 126 EP - 136 VL - 62 UR - http://geodesic.mathdoc.fr/item/ZNSL_1976_62_a10/ LA - ru ID - ZNSL_1976_62_a10 ER -