Kapitel LXXIX. Descartes. Fermat.
Von 1200 - 1668 Bd. 2, GDML_Books, (1892), p. 776 / Harvested from
Access to full text 
@article{PPN517628244+dmdlog51,
     title = {Kapitel LXXIX. Descartes. Fermat.},
     booktitle = {Von 1200 - 1668 Bd. 2},
     series = {GDML\_Books},
     year = {1892},
     pages = {776},
     url = {http://dml.mathdoc.fr/item/PPN517628244+dmdlog51}
}

 (éd.). Kapitel LXXIX. Descartes. Fermat., dans Von 1200 - 1668 Bd. 2, GDML_Books,  (1892), p. 776. http://gdmltest.u-ga.fr/item/PPN517628244+dmdlog51/