@article{TMF_1983_57_3_a8,
     author = {Yu. E. Karpeshina},
     title = {Spectrum and eigenfunctions of the {Schr\"odinger} operator in three-dimensional space with point potential of the type of a~homogeneous two-dimensional lattice},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {414--423},
     publisher = {mathdoc},
     volume = {57},
     number = {3},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1983_57_3_a8/}
}