1. PFAFF an GAUSS, 1799 November 24
Nachtraege zur reinen Mathematik Bd. 10 Abt 1, GDML_Books, (1917), p. 232 / Harvested from
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@article{PPN236018647+dmdlog111,
     title = {1. PFAFF an GAUSS, 1799 November 24},
     booktitle = {Nachtraege zur reinen Mathematik Bd. 10 Abt 1},
     series = {GDML\_Books},
     year = {1917},
     pages = {232},
     url = {http://dml.mathdoc.fr/item/PPN236018647+dmdlog111}
}

 (éd.). 1. PFAFF an GAUSS, 1799 November 24, dans Nachtraege zur reinen Mathematik Bd. 10 Abt 1, GDML_Books,  (1917), p. 232. http://gdmltest.u-ga.fr/item/PPN236018647+dmdlog111/