@article{BUMI_2012_9_5_1_a4,
     author = {Yuan, Pengfei and Zhang, Shiqing},
     title = {New {Periodic} {Solutions} for {N-Body} {Problems} with {Weak} {Force} {Potentials}},
     journal = {Bollettino della Unione matematica italiana},
     pages = {93--112},
     publisher = {mathdoc},
     volume = {Ser. 9, 5},
     number = {1},
     year = {2012},
     zbl = {1348.70028},
     mrnumber = {2919650},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2012_9_5_1_a4/}
}