@article{TMF_1969_1_2_a12,
     author = {G. M. Zhislin and E. L. Mandel'},
     title = {Spectrum of molecular electron energy operators in spaces of functions of specified symmetry},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {295--302},
     year = {1969},
     volume = {1},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1969_1_2_a12/}
}