TY - JOUR AU - S. P. Tsarev TI - Factoring linear partial differential operators and the Darboux method for integrating nonlinear partial differential equations JO - Teoretičeskaâ i matematičeskaâ fizika PY - 2000 SP - 144 EP - 160 VL - 122 IS - 1 UR - http://geodesic.mathdoc.fr/item/TMF_2000_122_1_a11/ LA - ru ID - TMF_2000_122_1_a11 ER -