@article{PORMA_1990__47_4_115733,
     author = {Almeida, Jorge},
     title = {An elementary proof that finite groups are projectively torsion-free},
     journal = {Portugaliae mathematica},
     pages = {437--444},
     publisher = {mathdoc},
     volume = {47},
     number = {4},
     year = {1990},
     mrnumber = {1090482},
     zbl = {0721.20017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1990__47_4_115733/}
}