@article{PPN37649882X+dmdlog11, title = {Inhalt gradliniger Polygone.}, booktitle = {Geometrie Bd. 2}, series = {GDML\_Books}, year = {1968}, pages = {7}, url = {http://dml.mathdoc.fr/item/PPN37649882X+dmdlog11} }
(éd.). Inhalt gradliniger Polygone., dans Geometrie Bd. 2, GDML_Books, (1968), p. 7. http://gdmltest.u-ga.fr/item/PPN37649882X+dmdlog11/