TY - JOUR AU - S. Piasta TI - Difference schemes with a splitting operator for systems of differential equations of mixed type JO - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki PY - 1969 SP - 884 EP - 893 VL - 9 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZVMMF_1969_9_4_a10/ LA - ru ID - ZVMMF_1969_9_4_a10 ER -