@article{ASNSP_1938_2_7_3-4_297_0,
     author = {Glenn, Oliver E.},
     title = {Theory of planetary systems},
     journal = {Annali della Scuola Normale Superiore di Pisa - Scienze Fisiche e Matematiche},
     pages = {297--311},
     publisher = {Scuola normale superiore},
     volume = {Ser. 2, 7},
     number = {3-4},
     year = {1938},
     zbl = {0019.28703},
     mrnumber = {1556810},
     language = {en},
     url = {http://archive.numdam.org/item/ASNSP_1938_2_7_3-4_297_0/}
}