@article{ZNSL_2022_512_a1,
     author = {A. R. Aliev and E. H. Eyvazov},
     title = {Spectral shift function and eigenvalues of the perturbed operator},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {15--26},
     year = {2022},
     volume = {512},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2022_512_a1/}
}