@article{10_4064_fm_102_2_87_90,
     author = {W. Kulpa},
     title = {Some factorization theorems for closed subspaces},
     journal = {Fundamenta Mathematicae},
     pages = {87--90},
     publisher = {mathdoc},
     volume = {102},
     number = {2},
     year = {1979},
     doi = {10.4064/fm-102-2-87-90},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-102-2-87-90/}
}