@article{10_21136_CPMF_1947_121555,
     author = {Kat\v{e}tov, Miroslav},
     title = {On the equivalence of certain types of extension of topological spaces},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {101--106},
     year = {1947},
     volume = {72},
     number = {3},
     doi = {10.21136/CPMF.1947.121555},
     mrnumber = {0024611},
     zbl = {0041.51505},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1947.121555/}
}