@article{10_4064_cm_66_2_319_334,
     author = {Piotr Biler and Tadeusz Nadzieja},
     title = {Existence and nonexistence of solutions for a model of gravitational interaction of particles, {I}},
     journal = {Colloquium Mathematicum},
     pages = {319--334},
     publisher = {mathdoc},
     volume = {66},
     number = {2},
     year = {1993},
     doi = {10.4064/cm-66-2-319-334},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-66-2-319-334/}
}