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| 0000072909-16-000021-index.html | 2016-05-13 14:02:18 | |
| 0000072909-16-000021.txt | 2016-05-13 14:02:18 | |
 0000072909-16-000021-xbrl.zip | 181061 | 2016-05-13 14:02:18 |
| FilingSummary.xml | 32068 | 2016-05-13 14:02:18 |
| Financial_Report.xlsx | 62220 | 2016-05-13 14:02:18 |
| nspw-20160331.xml | 1075291 | 2016-05-13 14:02:18 |
| nspw-20160331.xsd | 52279 | 2016-05-13 14:02:18 |
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| nspw-20160331_lab.xml | 646170 | 2016-05-13 14:02:18 |
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| nspw0331201610-q.htm | 703688 | 2016-05-13 14:02:18 |
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| report.css | 2767 | 2016-05-13 14:02:18 |
| Show.js | 1410 | 2016-05-13 14:02:18 |