@article{DAN_1965_165_1_a11,
     author = {\`E. R. Tsekanovskii},
     title = {Generalized extensions of unbounded operators},
     journal = {Doklady Akademii Nauk},
     pages = {44--46},
     publisher = {mathdoc},
     volume = {165},
     number = {1},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_165_1_a11/}
}