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| 0000042316-18-000028-index.html | 2018-05-08 16:23:01 | |
| 0000042316-18-000028.txt | 2018-05-08 16:23:01 | |
| a03312018earningsrelease.htm | 135203 | 2018-05-08 16:23:01 |
| a8-k03312018earningsrelease.htm | 27357 | 2018-05-08 16:23:01 |
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