Media type: E-Article Title: Testing Parameters in GMM Without Assuming that They Are Identified Contributor: Kleibergen, Frank Published: The Econometric Society, 2005 Published in: Econometrica, 73 (2005) 4, Seite 1103-1123 Language: English DOI: 10.1111/j.1468-0262.2005.00610.x ISSN: 0012-9682; 1468-0262 Origination: Footnote: