TY - JOUR AU - P. N. Vabishchevich TI - Two-level schemes of higher approximation order for time-dependent problems with skew-symmetric operators JO - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki PY - 2011 SP - 1121 EP - 1132 VL - 51 IS - 6 UR - http://geodesic.mathdoc.fr/item/ZVMMF_2011_51_6_a11/ LA - ru ID - ZVMMF_2011_51_6_a11 ER -