Thesis (Ph. D.)--University of Maryland, College Park, 2007. / Includes bibliographical references (leaves 172-181).
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/226318400 |
| Creators | Liu, Ying. |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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