@article{RM_1988_43_1_a15,
     author = {Yu. V. Egorov and V. A. Kondrat'ev},
     title = {On estimates of the negative spectrum for the {Schr\"odinger} operator},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {239--240},
     publisher = {mathdoc},
     volume = {43},
     number = {1},
     year = {1988},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1988_43_1_a15/}
}