@article{10_4064_fm_158_3_229_240,
     author = {Paul J. Szeptycki and Jerry E. Vaughan},
     title = {Almost disjoint families and property (a)},
     journal = {Fundamenta Mathematicae},
     pages = {229--240},
     publisher = {mathdoc},
     volume = {158},
     number = {3},
     year = {1998},
     doi = {10.4064/fm-158-3-229-240},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-158-3-229-240/}
}