@article{PORMA_1962__21_1_114875,
     author = {Saalfrank, C.W. and Jaworowski, J.W.},
     title = {A characterization of contractible compact {Hausdorff} spaces},
     journal = {Portugaliae mathematica},
     pages = {59--60},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {1962},
     mrnumber = {0141082},
     zbl = {0106.15902},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1962__21_1_114875/}
}