TY - JOUR AU - Yu. I. Mokin TI - Peculiarities in ill-posed problems which appear in investigations of motion of electrons in an electromagnetic field JO - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki PY - 1980 SP - 133 EP - 146 VL - 20 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZVMMF_1980_20_1_a12/ LA - ru ID - ZVMMF_1980_20_1_a12 ER -