@article{FPM_2000_6_3_a14,
     author = {Yu. V. Popov and L. U. Ancarani},
     title = {On the {Schr\"odinger} equation for helium atom},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {841--858},
     publisher = {mathdoc},
     volume = {6},
     number = {3},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2000_6_3_a14/}
}