@article{10_4064_sm_97_1_1_12,
     author = {I. Assam and J. Wo\'s},
     title = {An equivalent measure for some nonsingular transformations and application},
     journal = {Studia Mathematica},
     pages = {1--12},
     year = {1990},
     volume = {97},
     number = {1},
     doi = {10.4064/sm-97-1-1-12},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-97-1-1-12/}
}