TY - JOUR AU - Zh. N. Kudryasheva TI - The solution of the problem of the motion of a conservative impurity in a river with a bed of arbitrary configuration JO - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki PY - 1993 SP - 1054 EP - 1065 VL - 33 IS - 7 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZVMMF_1993_33_7_a6/ LA - ru ID - ZVMMF_1993_33_7_a6 ER -