@article{CMUC_2011_52_2_a2,
     author = {Hru\v{s}\'ak, Michael and Meza-Alc\'antara, David},
     title = {Comparison game on {Borel} ideals},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {191--204},
     year = {2011},
     volume = {52},
     number = {2},
     mrnumber = {2849045},
     zbl = {1240.03023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2011_52_2_a2/}
}