III. Ptolemäus.
Die Theorien des Alterthums Theil 1, GDML_Books, (1887), p. 86 / Harvested from
Access to full text 
@article{PPN59576908X+DMDLOG_0005,
     title = {III. Ptolem\"aus.},
     booktitle = {Die Theorien des Alterthums Theil 1},
     series = {GDML\_Books},
     publisher = {Teubner},
     address = {Leipzig},
     year = {1887},
     pages = {86},
     url = {http://dml.mathdoc.fr/item/PPN59576908X+DMDLOG_0005}
}

 (éd.). III. Ptolemäus., dans Die Theorien des Alterthums Theil 1, GDML_Books,  (1887), p. 86. http://gdmltest.u-ga.fr/item/PPN59576908X+DMDLOG_0005/