@article{10_14712_1213_7243_2015_271,
     author = {Hru\v{s}\'ak, Michael and Chodounsk\'y, David and Jech, Thomas},
     title = {Preface},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {413--414},
     publisher = {mathdoc},
     volume = {59},
     number = {4},
     year = {2018},
     doi = {10.14712/1213-7243.2015.271},
     mrnumber = {3914708},
     zbl = {07036977},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2015.271/}
}