This is an old revision of this page, as edited by Michael Hardy(talk | contribs) at 20:52, 5 July 2005(Instrumental variables moved to Instrumental variable). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.Revision as of 20:52, 5 July 2005 by Michael Hardy(talk | contribs)(Instrumental variables moved to Instrumental variable)
