@article{MAN_1976__223_162874,
     author = {Wolfgang Krieger},
     title = {On {Ergodic} {Flows} and the {Isomorphism} of {Factors.}},
     journal = {Mathematische Annalen},
     pages = {19--70},
     publisher = {mathdoc},
     volume = {223},
     year = {1976},
     zbl = {0332.46045},
     url = {http://geodesic.mathdoc.fr/item/MAN_1976__223_162874/}
}