Cao, L. X.Kazimirov, A.Kohn, V.Konuma, M.Sozontov, E.2004-12-142004-12-1420012001http://hdl.handle.net/2003/1887910.17877/DE290R-1662enThe American Physical SocietyPhysical Review Letters530X-Ray Standing Wave Analysis of the Effect of Isotopic Composition on the Lattice Constants of Si and Ge10.1103/PhysRevLett.86.5329article (journal)