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| 0001262463-13-000310-index.html | 2013-05-20 08:27:22 | |
| 0001262463-13-000310.txt | 2013-05-20 08:27:22 | |
 0001262463-13-000310-xbrl.zip | 119403 | 2013-05-20 08:27:22 |
| ex311.htm | 8931 | 2013-05-20 08:27:22 |
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| ex322.htm | 4927 | 2013-05-20 08:27:22 |
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| pwrv-20130331.xsd | 49140 | 2013-05-20 08:27:22 |
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| pwrv-20130331_pre.xml | 295562 | 2013-05-20 08:27:22 |
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| report.css | 2721 | 2013-05-20 08:27:22 |
| Show.js | 6423 | 2013-05-20 08:27:22 |