@article{DE_2002_38_6_a14,
     author = {Yu. S. Gasymov and A. A. Niftiev},
     title = {Minimization of {Eigenvalues} of the {Schr\"odinger} {Operator} with {Respect} to the {Domain}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {842--844},
     publisher = {mathdoc},
     volume = {38},
     number = {6},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2002_38_6_a14/}
}