@article{10_4064_fm_134_2_143_155,
     author = {Ludomir Newelski},
     title = {A proof of {Saffe's} conjecture},
     journal = {Fundamenta Mathematicae},
     pages = {143--155},
     publisher = {mathdoc},
     volume = {134},
     number = {2},
     year = {1990},
     doi = {10.4064/fm-134-2-143-155},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-134-2-143-155/}
}