Revision as of 18:38, 21 March 2007 by Carl McBride(talk | contribs)(New page: ==References== #[http://dx.doi.org/10.1002/andp.19213690304 Paul Ewald "Die Berechnung Optischer und Electrostatischer Gitterpotentiale", Annalen der Physik '''64''' pp. 253-287 (1921)])