@article{CMUC_2005__46_3_a10,
     author = {Levy, Ronnie and Matveev, Mikhail},
     title = {Weak extent in normal spaces},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {497--501},
     publisher = {mathdoc},
     volume = {46},
     number = {3},
     year = {2005},
     mrnumber = {2174527},
     zbl = {1121.54012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2005__46_3_a10/}
}