@inproceedings{escidoc:0953, title = {{Isotopic mass and lattice constant of Si and Ge: X-Ray standing wave measurements}}, author = {Zegenhagen, J. and Kazimirov, A. and Cao, L. X. and Konuma, M. and Sozontov, E. and Plachke, D. and Carstanjen, H. D. and Bilger, G. and Haller, E. and Kohn, V. and Cardona, M.}, booktitle = {{Proceedings of the 25th Conference on the Physics of Semiconductors}}, volume = {87}, pages = {125--127}, series = {{Springer proceedings in physics}}, publisher = {Springer}, address = {Osaka, Japan}, year = {2001}, doi = {} }