@article{10_4064_sm_33_1_83_92,
     author = {K. Krzy\.zewski and W. Szlenk},
     title = {On invariant measures for expanding differentiable mappings},
     journal = {Studia Mathematica},
     pages = {83--92},
     year = {1969},
     volume = {33},
     number = {1},
     doi = {10.4064/sm-33-1-83-92},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-33-1-83-92/}
}