@article{MS2_1973__32_166303,
     author = {Michael Mather},
     title = {Hurewicz {Theorems} for {Pairs} and {Squares.}},
     journal = {Mathematica Scandinavica},
     pages = {269--272},
     publisher = {mathdoc},
     volume = {32},
     year = {1973},
     zbl = {0279.55008},
     url = {http://geodesic.mathdoc.fr/item/MS2_1973__32_166303/}
}