Working paper series.

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Item Link Original Source
Limited (search only)   no.1-9 Cornell University
Limited (search only)   no.6-A University of Minnesota
Limited (search only)   no.7-A University of Minnesota
Limited (search only)   no.8-A (1991) University of Minnesota
Limited (search only)   no.9 (1994) University of Minnesota
Limited (search only)   no.10-11 Cornell University
Limited (search only)   no.10 (2001) University of Minnesota