@article{GDZPPN002264013, title = {Der Begriff der Grenze}, journal = {Mathematische Annalen}, volume = {71}, year = {1912}, pages = {88-96}, zbl = {42.0265.02}, url = {http://dml.mathdoc.fr/item/GDZPPN002264013} }
Steinhaus, H. Der Begriff der Grenze. Mathematische Annalen, Tome 71 (1912) pp. 88-96. http://gdmltest.u-ga.fr/item/GDZPPN002264013/