TY - JOUR AU - Filip Strobin TI - A comparison of two notions of porosity JO - Commentationes Mathematicae PY - 2008 SP - 209 EP - 219 VL - 48 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/cm.v48i2.5273/ DO - 10.14708/cm.v48i2.5273 LA - pl ID - 10_14708_cm_v48i2_5273 ER -