@article{10_21136_CMJ_1988_102235,
     author = {Hol\'a, \v{L}ubica},
     title = {An extension theorem for continuous functions},
     journal = {Czechoslovak Mathematical Journal},
     pages = {398--403},
     publisher = {mathdoc},
     volume = {38},
     number = {3},
     year = {1988},
     doi = {10.21136/CMJ.1988.102235},
     mrnumber = {950293},
     zbl = {0684.54012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1988.102235/}
}