@article{CMUC_1997__38_4_a14,
     author = {Li, Yong Min and Guo-jun, Wang},
     title = {Localic {Kat\v{e}tov-Tong} insertion theorem and localic {Tietze} extension theorem},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {801--814},
     publisher = {mathdoc},
     volume = {38},
     number = {4},
     year = {1997},
     mrnumber = {1603726},
     zbl = {0938.06008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1997__38_4_a14/}
}