§ 187. Der Punkt
Lehrbuch der Algebra Bd. 3, GDML_Books, (1908), p. 663 / Harvested from
Access to full text 
@article{PPN234736674+dmdlog225,
     title = {\S\ 187. Der Punkt},
     booktitle = {Lehrbuch der Algebra Bd. 3},
     series = {GDML\_Books},
     year = {1908},
     pages = {663},
     url = {http://dml.mathdoc.fr/item/PPN234736674+dmdlog225}
}

 (éd.). § 187. Der Punkt, dans Lehrbuch der Algebra Bd. 3, GDML_Books,  (1908), p. 663. http://gdmltest.u-ga.fr/item/PPN234736674+dmdlog225/