| Identifer | oai:union.ndltd.org:OhioLink/oai:etd.ohiolink.edu:case1059490285 |
| Date | January 1991 |
| Creators | Ning, Xin |
| Publisher | Case Western Reserve University School of Graduate Studies / OhioLINK |
| Source Sets | Ohiolink ETDs |
| Language | English |
| Detected Language | English |
| Type | text |
| Source | http://rave.ohiolink.edu/etdc/view?acc_num=case1059490285 |
| Rights | unrestricted, This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
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