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| 0000070415-14-000014-index.html | 2014-10-30 11:20:17 | |
| 0000070415-14-000014.txt | 2014-10-30 11:20:17 | |
 0000070415-14-000014-xbrl.zip | 126183 | 2014-10-30 11:20:17 |
| exhibit311-gpx1.htm | 12566 | 2014-10-30 11:20:17 |
| exhibit312-gpx1.htm | 13499 | 2014-10-30 11:20:17 |
| exhibit321-gpx1.htm | 8657 | 2014-10-30 11:20:17 |
| FilingSummary.xml | 18043 | 2014-10-30 11:20:17 |
| Financial_Report.xls | 828195 | 2014-10-30 11:20:17 |
| Financial_Report.xlsx | 123297 | 2014-10-30 11:20:17 |
| gpx-20140930.htm | 839252 | 2014-10-30 11:20:17 |
| gpx-20140930.xml | 957624 | 2014-10-30 11:20:17 |
| gpx-20140930.xsd | 30889 | 2014-10-30 11:20:17 |
| gpx-20140930_cal.xml | 62600 | 2014-10-30 11:20:17 |
| gpx-20140930_def.xml | 148466 | 2014-10-30 11:20:17 |
| gpx-20140930_lab.xml | 433026 | 2014-10-30 11:20:17 |
| gpx-20140930_pre.xml | 242087 | 2014-10-30 11:20:17 |
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| R9.htm | 11472 | 2014-10-30 11:20:17 |
| report.css | 2740 | 2014-10-30 11:20:17 |
| Show.js | 1410 | 2014-10-30 11:20:17 |