@article{FAA_2014_48_4_a7,
     author = {R. G. Novikov and I. A. Taimanov and S. P. Tsarev},
     title = {Two-Dimensional von {Neumann--Wigner} {Potentials} with a {Multiple} {Positive} {Eigenvalue}},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {74--77},
     publisher = {mathdoc},
     volume = {48},
     number = {4},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_2014_48_4_a7/}
}