Voir la notice de l'article provenant de la source Math-Net.Ru
@article{AA_1997_9_6_a7, author = {A. B. Pushnitskii}, title = {A representation for the spectral shift function in the case of perturbations of fixed sign}, journal = {Algebra i analiz}, pages = {197--213}, publisher = {mathdoc}, volume = {9}, number = {6}, year = {1997}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AA_1997_9_6_a7/} }
A. B. Pushnitskii. A representation for the spectral shift function in the case of perturbations of fixed sign. Algebra i analiz, Tome 9 (1997) no. 6, pp. 197-213. http://geodesic.mathdoc.fr/item/AA_1997_9_6_a7/