Thesis advisor: Cowles, Mary K. Includes bibliographic references (p. 167-172).
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/620837014 |
| Date | January 2009 |
| Creators | Liang, Dong. Cowles, Mary Kathryn. |
| Publisher | Iowa City : University of Iowa, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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