@article{DAN_1980_251_1_a7,
     author = {A. V. Kuzhel'},
     title = {Regular extensions of {Hermitian} operators},
     journal = {Doklady Akademii Nauk},
     pages = {30--33},
     publisher = {mathdoc},
     volume = {251},
     number = {1},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_251_1_a7/}
}