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|---|---|---|
 0000702165-11-000087-index-headers.html | 2011-04-29 09:34:04 | |
| 0000702165-11-000087-index.html | 2011-04-29 09:34:04 | |
| 0000702165-11-000087.txt | 2011-04-29 09:34:04 | |
 0000702165-11-000087-xbrl.zip | 58967 | 2011-04-29 09:34:04 |
| defnref.xml | 47276 | 2011-04-29 09:34:04 |
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 logo_newsmall.jpg | 20517 | 2011-04-29 09:34:04 |
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| nsc-20110331.xsd | 36612 | 2011-04-29 09:34:04 |
| nsc-20110331_cal.xml | 32655 | 2011-04-29 09:34:04 |
| nsc-20110331_def.xml | 41675 | 2011-04-29 09:34:04 |
| nsc-20110331_lab.xml | 246405 | 2011-04-29 09:34:04 |
| nsc-20110331_pre.xml | 150657 | 2011-04-29 09:34:04 |
| nsc20110331.htm | 161663 | 2011-04-29 09:34:04 |
| nscex15.htm | 1338 | 2011-04-29 09:34:04 |
| nscex31.htm | 10451 | 2011-04-29 09:34:04 |
| nscex32.htm | 3439 | 2011-04-29 09:34:04 |
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| R19.xml | 19687 | 2011-04-29 09:34:04 |
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| R8.xml | 24112 | 2011-04-29 09:34:04 |
| R9.xml | 7786 | 2011-04-29 09:34:04 |