@article{PORMA_1962__21_2_114881,
     author = {Abian, Alexander and Brown, Arthur B.},
     title = {A fixed point theorem for the closed 2-cell},
     journal = {Portugaliae mathematica},
     pages = {93--98},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {1962},
     mrnumber = {0145501},
     zbl = {0107.16603},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1962__21_2_114881/}
}