- Publication venue
- 'The University of Iowa'
- Publication date
- 01/04/1981
- Field of study
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- Publication venue
- UNM Digital Repository
- Publication date
- 11/05/2017
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- Publication venue
- School of Letters and the Graduate College of The University of Iowa
- Publication date
- 01/07/1977
- Field of study
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- Publication venue
- School of Letters and the Graduate College of The University of Iowa
- Publication date
- 01/01/1976
- Field of study
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- Publication venue
- Published by Elsevier B.V.
- Publication date
- 15/05/1977
- Field of study
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- Publication venue
- 'Proceedings of the National Academy of Sciences'
- Publication date
- Field of study
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