@article{10_4064_fm_162_2_149_162,
     author = {Jerzy Krzempek},
     title = {Compositions of simple maps},
     journal = {Fundamenta Mathematicae},
     pages = {149--162},
     publisher = {mathdoc},
     volume = {162},
     number = {2},
     year = {1999},
     doi = {10.4064/fm-162-2-149-162},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-162-2-149-162/}
}