Zweites Capitel.
Geometrische Formenlehre Theil 2, GDML_Books, (1869), p. 51 / Harvested from
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@article{PPN593925297+DMDLOG_0012,
     title = {Zweites Capitel.},
     booktitle = {Geometrische Formenlehre Theil 2},
     series = {GDML\_Books},
     publisher = {Vieweg},
     year = {1869},
     pages = {51},
     url = {http://dml.mathdoc.fr/item/PPN593925297+DMDLOG_0012}
}

 (éd.). Zweites Capitel., dans Geometrische Formenlehre Theil 2, GDML_Books,  (1869), p. 51. http://gdmltest.u-ga.fr/item/PPN593925297+DMDLOG_0012/