@article{10_14712_1213_7243_2015_275,
     author = {Hubi\v{c}ka, Jan and Kone\v{c}n\'y, Mat\v{e}j and Ne\v{s}et\v{r}il, Jaroslav},
     title = {A combinatorial proof of the extension  property for partial isometries},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {39--47},
     year = {2019},
     volume = {60},
     number = {1},
     doi = {10.14712/1213-7243.2015.275},
     mrnumber = {3946663},
     zbl = {07088824},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2015.275/}
}