@article{TM_2020_311_a6,
     author = {Pavel Exner},
     title = {Leaky quantum structures},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {123--139},
     publisher = {mathdoc},
     volume = {311},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2020_311_a6/}
}