@article{VMUMM_2023_5_a3,
     author = {M. A. Nikulin},
     title = {Spectrum of the {Schr\"odinger} operator in an elliptical ring cover},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {22--32},
     year = {2023},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2023_5_a3/}
}