TY - JOUR AU - A. Rybarski AU - C. Ryll-Nardzewski TI - Pressureless filtration in a homogeneous and isotropic medium. I. JO - Mathematica Applicanda PY - 1975 SP - 157 EP - 166 VL - 3 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/ma.v3i5.1191/ DO - 10.14708/ma.v3i5.1191 LA - pl ID - 10_14708_ma_v3i5_1191 ER -