@article{PPN318492520+dmdlog17, title = {\S\ 9.}, booktitle = {Theoria nova functionum ultraellipticarum Ps. 1}, series = {GDML\_Books}, year = {1863}, pages = {23}, url = {http://dml.mathdoc.fr/item/PPN318492520+dmdlog17} }
(éd.). § 9., dans Theoria nova functionum ultraellipticarum Ps. 1, GDML_Books, (1863), p. 23. http://gdmltest.u-ga.fr/item/PPN318492520+dmdlog17/