TY - JOUR AU - Piotr Biler AU - Tadeusz Nadzieja TI - Existence and nonexistence of solutions for a model of gravitational interaction of particles, I JO - Colloquium Mathematicum PY - 1993 SP - 319 EP - 334 VL - 66 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-66-2-319-334/ DO - 10.4064/cm-66-2-319-334 LA - en ID - 10_4064_cm_66_2_319_334 ER -