Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1988_9_a10, author = {A. L. Sakhnovich}, title = {Asymptotics of spectral functions of an $S$-colligation}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {62--72}, publisher = {mathdoc}, number = {9}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1988_9_a10/} }
A. L. Sakhnovich. Asymptotics of spectral functions of an $S$-colligation. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 9 (1988), pp. 62-72. http://geodesic.mathdoc.fr/item/IVM_1988_9_a10/