@article{10_4064_fm_107_3_161_166,
     author = {W. Kulpa},
     title = {Properties of the covering type and a factorization theorem},
     journal = {Fundamenta Mathematicae},
     pages = {161--166},
     publisher = {mathdoc},
     volume = {107},
     number = {3},
     year = {1980},
     doi = {10.4064/fm-107-3-161-166},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-107-3-161-166/}
}