@article{CMUC_2003__44_4_a14,
     author = {Arhangel'skii, A. V.},
     title = {Perfect mappings in topological groups, cross-complementary subsets and quotients},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {701--709},
     publisher = {mathdoc},
     volume = {44},
     number = {4},
     year = {2003},
     mrnumber = {2062887},
     zbl = {1098.22003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2003__44_4_a14/}
}