@article{MZ_1974__138_172092,
     author = {Karl Sigmund},
     title = {On the {Time} {Evolution} of {Statistical} {States} for {Anosov} {Systems.}},
     journal = {Mathematische Zeitschrift},
     pages = {183--190},
     publisher = {mathdoc},
     volume = {138},
     year = {1974},
     zbl = {0283.58012},
     url = {http://geodesic.mathdoc.fr/item/MZ_1974__138_172092/}
}