@article{CMUC_2009__50_3_a9,
     author = {Morgan, Charles and da Silva, Samuel Gomes},
     title = {Almost disjoint families and {\textquotedblleft}never{\textquotedblright} cardinal invariants},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {433--444},
     publisher = {mathdoc},
     volume = {50},
     number = {3},
     year = {2009},
     mrnumber = {2573416},
     zbl = {1212.03032},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2009__50_3_a9/}
}