@article{INTF_1985_2_a2,
     author = {I. P. Kornfeld and Ya. G. Sinai},
     title = {General ergodic theory of transformation groups with invariant measure. {Chapter~2.} {Spectral} theory of dynamical systems},
     journal = {Itogi Nauki i Tekhniki. Seriya Sovremennye Problemy Matematiki. Fundamental'nye Napravleniya },
     pages = {35--44},
     publisher = {mathdoc},
     volume = {2},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTF_1985_2_a2/}
}