@article{RM_1981_36_5_a18,
     author = {A. S. Lyskova},
     title = {Topological properties of the {Schr\"odinger} operator in a~magnetic field and with a~weak potential},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {165--166},
     publisher = {mathdoc},
     volume = {36},
     number = {5},
     year = {1981},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1981_36_5_a18/}
}