@article{TMF_1991_88_1_a7,
     author = {E. A. Smolenskii and I. V. Stankevich},
     title = {Nodes of eigenfunctions of a~many-particle {Schr\"odinger} equation},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {46--58},
     publisher = {mathdoc},
     volume = {88},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1991_88_1_a7/}
}