@article{PPN37649882X+dmdlog162, title = {Erg\"anzungen zu Italien.}, booktitle = {Geometrie Bd. 2}, series = {GDML\_Books}, year = {1968}, pages = {286}, url = {http://dml.mathdoc.fr/item/PPN37649882X+dmdlog162} }
(éd.). Ergänzungen zu Italien., dans Geometrie Bd. 2, GDML_Books, (1968), p. 286. http://gdmltest.u-ga.fr/item/PPN37649882X+dmdlog162/