@article{SM_1986_53_2_a8,
     author = {A. V. Rybkin},
     title = {The spectral shift function for a dissipative and a selfadjoint operator, and trace formulas for resonances},
     journal = {Sbornik. Mathematics},
     pages = {421--431},
     publisher = {mathdoc},
     volume = {53},
     number = {2},
     year = {1986},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1986_53_2_a8/}
}