Ia. Punctcoordinaten.
Vorlesung, gehalten im Wintersemester 1892-93 Band 1, GDML_Books, (1893), p. 20 / Harvested from
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@article{PPN592921905+DMDLOG_0007,
     title = {Ia. Punctcoordinaten.},
     booktitle = {Vorlesung, gehalten im Wintersemester 1892-93 Band 1},
     series = {GDML\_Books},
     publisher = {Baumann},
     address = {G\"ottingen},
     year = {1893},
     pages = {20},
     url = {http://dml.mathdoc.fr/item/PPN592921905+DMDLOG_0007}
}

 (éd.). Ia. Punctcoordinaten., dans Vorlesung, gehalten im Wintersemester 1892-93 Band 1, GDML_Books,  (1893), p. 20. http://gdmltest.u-ga.fr/item/PPN592921905+DMDLOG_0007/