Mathematische ZeitschriftDecember 1940, Volume 46, Issue 1, pp 591–604 | Cite asRäumliche Ebenennetze. deren Sechsflachzellen Inkugeln besitzenAuthorsAuthors and affiliationsH. GrafArticleReceived: 24 December 1939 24 Downloads This is a preview of subscription content, log in to check access.PreviewUnable to display preview. Download preview PDF.Unable to display preview. Download preview PDF.Copyright information© Springer-Verlag 1940Authors and AffiliationsH. Graf11.Darmstadt