%0 Journal Article %A Piotr Biler %A Tadeusz Nadzieja %T Existence and nonexistence of solutions for a model of gravitational interaction of particles, I %J Colloquium Mathematicum %D 1993 %P 319-334 %V 66 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-66-2-319-334/ %R 10.4064/cm-66-2-319-334 %G en %F 10_4064_cm_66_2_319_334