GAUSS an REPSOLD, 2. Sept. 1809
Varia. Atlas des Erdmagnetismus Bd. 12, GDML_Books, (1929), p. 147 / Harvested from
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@article{PPN236060120+dmdlog99,
     title = {GAUSS an REPSOLD, 2. Sept. 1809},
     booktitle = {Varia. Atlas des Erdmagnetismus Bd. 12},
     series = {GDML\_Books},
     year = {1929},
     pages = {147},
     url = {http://dml.mathdoc.fr/item/PPN236060120+dmdlog99}
}

 (éd.). GAUSS an REPSOLD, 2. Sept. 1809, dans Varia. Atlas des Erdmagnetismus Bd. 12, GDML_Books,  (1929), p. 147. http://gdmltest.u-ga.fr/item/PPN236060120+dmdlog99/