@article{10_14708_cm_v48i2_5273,
     author = {Filip Strobin},
     title = {A comparison of two notions of porosity},
     journal = {Commentationes Mathematicae},
     pages = { 209--219},
     publisher = {mathdoc},
     volume = {48},
     number = {2},
     year = {2008},
     doi = {10.14708/cm.v48i2.5273},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v48i2.5273/}
}