@article{DAN_1980_254_5_a4,
     author = {G. M. Gubreev and A. I. Kovalenko},
     title = {On a criterion for the equality $D_A=D_{A^*}$ for dissipative operators},
     journal = {Doklady Akademii Nauk},
     pages = {1044--1047},
     publisher = {mathdoc},
     volume = {254},
     number = {5},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_254_5_a4/}
}