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Click on "Authors" and enter wahba, g.
The amazing JSTOR (www.jstor.org) contains pdf files of selected journals from journal inception to -5 years from the present. Search results are here, links to the actual papers in JSTOR are included but your institution may need a subscription in order to get the actual papers. As of June 2008 there are 51 papers in JSTOR all more than 5 years old. . Preprints of of all mss since mid 1993 can be found here.