Ebene Trigonometrie. Stereometrie.
Leitfaden der Elementar-Mathematik Teil 2, GDML_Books, (1883), p. 15 / Harvested from
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@article{PPN62264663X+DMDLOG_0003,
     title = {Ebene Trigonometrie. Stereometrie.},
     booktitle = {Leitfaden der Elementar-Mathematik Teil 2},
     series = {GDML\_Books},
     publisher = {Schmidt},
     address = {Helmstedt},
     year = {1883},
     pages = {15},
     url = {http://dml.mathdoc.fr/item/PPN62264663X+DMDLOG_0003}
}

 (éd.). Ebene Trigonometrie. Stereometrie., dans Leitfaden der Elementar-Mathematik Teil 2, GDML_Books,  (1883), p. 15. http://gdmltest.u-ga.fr/item/PPN62264663X+DMDLOG_0003/