@article{FPM_1999_5_2_a16,
     author = {A. A. Shkalikov},
     title = {On the~existence of invariant subspaces of dissipative operators in space with indefinite metric},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {627--635},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_1999_5_2_a16/}
}