@article{KUIPM_1992_19_19_a15,
     author = {A. M. Sidorov},
     title = {On the analyticity of spectral pairs of nonself-adjoint operators},
     journal = {Issledovaniya po Prikladnoi Matematike i Informatike},
     pages = {126--136},
     year = {1992},
     volume = {19},
     number = {19},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUIPM_1992_19_19_a15/}
}