TY - JOUR AU - Yu. A. Tserkovnikov TI - Optimal method for truncating a chain of equations for two-time JO - Teoretičeskaâ i matematičeskaâ fizika PY - 2006 SP - 503 EP - 510 VL - 147 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_2006_147_3_a7/ LA - ru ID - TMF_2006_147_3_a7 ER -