@article{CMUC_2006__47_3_a11,
     author = {Higuchi, Sachio and Tanaka, Hidenori},
     title = {Covering properties in countable products, {II}},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {491--502},
     publisher = {mathdoc},
     volume = {47},
     number = {3},
     year = {2006},
     mrnumber = {2281011},
     zbl = {1150.54010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2006__47_3_a11/}
}