@article{PPN234736674+dmdlog177, title = {\S\ 145. Grenzwerte f\"ur s = 1}, booktitle = {Lehrbuch der Algebra Bd. 3}, series = {GDML\_Books}, year = {1908}, pages = {548}, url = {http://dml.mathdoc.fr/item/PPN234736674+dmdlog177} }
(éd.). § 145. Grenzwerte für s = 1, dans Lehrbuch der Algebra Bd. 3, GDML_Books, (1908), p. 548. http://gdmltest.u-ga.fr/item/PPN234736674+dmdlog177/