Thesis (Ph. D.)--University of Joensuu, 2006. / Includes bibliographical references (p. 25-27).
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/83605296 |
| Date | January 2006 |
| Creators | Yang, Ronghua. |
| Publisher | Joensuu : Joensuun Yliopistopaino, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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