Revision as of 02:17, 19 June 2009 edit Doodle77 (talk \| contribs) Extended confirmed users 938 edits Undid revision 292873931 by 195.252.70.41 (talk) ← Previous edit		Revision as of 01:10, 9 August 2009 edit undo Erik9bot (talk \| contribs) 439,480 edits add Category:Articles lacking sources (Erik9bot) Next edit →
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Small-angle approximation: Difference between revisions