@article{MZ_1937__42_168736,
     author = {O. Perron},
     title = {Neue periodische {L\"osungen} des ebenen {Drei-und} {Mehrk\"orperproblems}},
     journal = {Mathematische Zeitschrift},
     pages = {593--624},
     publisher = {mathdoc},
     volume = {42},
     year = {1937},
     zbl = {63.0732.03},
     url = {http://geodesic.mathdoc.fr/item/MZ_1937__42_168736/}
}