@article{DAN_1965_160_6_a0,
     author = {D. \`E. Allakhverdiev},
     title = {Completeness of the system of eigenelements and adjoined elements of a class of nonselfadjoint operators 
},
     journal = {Doklady Akademii Nauk},
     pages = {1231--1234},
     publisher = {mathdoc},
     volume = {160},
     number = {6},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_160_6_a0/}
}