@article{AA_1998_10_5_a3,
     author = {A. Poltoratski},
     title = {Krein's spectral shift and perturbations of spectra of rank one},
     journal = {Algebra i analiz},
     pages = {143--183},
     publisher = {mathdoc},
     volume = {10},
     number = {5},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1998_10_5_a3/}
}