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| 0000908834-12-000194-index.html | 2012-05-14 12:37:40 | |
| 0000908834-12-000194.txt | 2012-05-14 12:37:40 | |
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| R10.htm | 48933 | 2012-05-14 12:37:40 |
| R11.htm | 239891 | 2012-05-14 12:37:40 |
| R12.htm | 174331 | 2012-05-14 12:37:40 |
| R13.htm | 710397 | 2012-05-14 12:37:40 |
| R14.htm | 11355 | 2012-05-14 12:37:40 |
| R15.htm | 15350 | 2012-05-14 12:37:40 |
| R16.htm | 6670 | 2012-05-14 12:37:40 |
| R2.htm | 123069 | 2012-05-14 12:37:40 |
| R3.htm | 33966 | 2012-05-14 12:37:40 |
| R4.htm | 134038 | 2012-05-14 12:37:40 |
| R5.htm | 31229 | 2012-05-14 12:37:40 |
| R6.htm | 11348 | 2012-05-14 12:37:40 |
| R7.htm | 145173 | 2012-05-14 12:37:40 |
| R8.htm | 6764 | 2012-05-14 12:37:40 |
| R9.htm | 14528 | 2012-05-14 12:37:40 |
| report.css | 2721 | 2012-05-14 12:37:40 |
| rivr-20120331.htm | 1579129 | 2012-05-14 12:37:40 |
| rivr-20120331.xml | 1364661 | 2012-05-14 12:37:40 |
| rivr-20120331.xsd | 13671 | 2012-05-14 12:37:40 |
| rivr-20120331ex311.htm | 15685 | 2012-05-14 12:37:40 |
| rivr-20120331ex312.htm | 15660 | 2012-05-14 12:37:40 |
| rivr-20120331ex32.htm | 5088 | 2012-05-14 12:37:40 |
| rivr-20120331_cal.xml | 48513 | 2012-05-14 12:37:40 |
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| Show.js | 6423 | 2012-05-14 12:37:40 |