Zeitschrift für PhysikDecember 1922, Volume 10, Issue 1, pp 377–386 | Cite asÜber die Krümmung des RaumesAuthorsAuthors and affiliationsA. FriedmanArticleReceived: 29 June 1922 49 Shares 733 Downloads 425 Citations 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 1922Authors and AffiliationsA. Friedman11.Petersburg