@article{MZ_1930__31_168170,
     author = {E. H\"older},
     title = {Mathematische {Untersuchungen} zur {Himmelsmechanik}},
     journal = {Mathematische Zeitschrift},
     pages = {197--257},
     publisher = {mathdoc},
     volume = {31},
     year = {1930},
     zbl = {55.0571.05},
     url = {http://geodesic.mathdoc.fr/item/MZ_1930__31_168170/}
}