@article{SM_1968_5_3_a0,
     author = {L. A. Sakhnovich},
     title = {Dissipative {Volterra} operators},
     journal = {Sbornik. Mathematics},
     pages = {311--331},
     year = {1968},
     volume = {5},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1968_5_3_a0/}
}