@article{INTM_1979_17_a1,
     author = {T. Ya. Azizov and I. S. Iokhvidov},
     title = {Linear operators in spaces with an indefinite metric and their applications},
     journal = {Itogi nauki i tehniki. Seri\^a, Matemati\v{c}eskij analiz},
     pages = {113--205},
     year = {1979},
     volume = {17},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTM_1979_17_a1/}
}