TY - JOUR AU - S. V. Khristenko TI - Sturm expansions of the Green's functions for very simple systems JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1975 SP - 31 EP - 45 VL - 22 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1975_22_1_a2/ LA - ru ID - TMF_1975_22_1_a2 ER -