@article{CMUC_1986__27_2_a16,
     author = {Dikranjan, Dikran N. and Giuli, Eraldo},
     title = {Ordinal invariants and epimorphisms in some categories of weak {Hausdorff} spaces},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {395--417},
     publisher = {mathdoc},
     volume = {27},
     number = {2},
     year = {1986},
     mrnumber = {857557},
     zbl = {0627.54005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1986__27_2_a16/}
}