@article{MZM_1999_65_5_a7,
     author = {I. Yu. Popov},
     title = {Short-range potential and a~model of the theory of extensions of operators for a~resonator with a~semitransparent boundary},
     journal = {Matemati\v{c}eskie zametki},
     pages = {703--711},
     publisher = {mathdoc},
     volume = {65},
     number = {5},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1999_65_5_a7/}
}