@article{EJDE_2000__2000__a34,
     author = {Boughariou,  Morched},
     title = {Non-collision solutions for a class of planar singular {Lagrangian} systems},
     journal = {Electronic journal of differential equations},
     year = {2000},
     volume = {2000},
     zbl = {0984.70015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2000__2000__a34/}
}