Boundary Value Problems 2010, 2010:524862 doi:10.1155/2010/524862
The electronic version of this article is the complete one and can be found online at: http://www.boundaryvalueproblems.com/content/2010/1/524862
| Received: | 30 July 2010 |
| Accepted: | 30 November 2010 |
| Published: | 12 December 2010 |
© 2010 Tsing-San Hsu and Huei-Li Lin.
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