@article{TMF_1975_22_1_a2,
     author = {S. V. Khristenko},
     title = {Sturm expansions of the {Green's} functions for very simple systems},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {31--45},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1975_22_1_a2/}
}