@article{ZNSL_1984_138_a8,
     author = {L. N. Nikol'skaya},
     title = {Stability of eigenvalues of some singular integral equations under compact perturbations},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {127--136},
     publisher = {mathdoc},
     volume = {138},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1984_138_a8/}
}