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| 0000929940-18-000008-index.html | 2018-02-05 09:20:11 | |
| 0000929940-18-000008.txt | 2018-02-05 09:20:11 | |
| a020520188-k.htm | 48077 | 2018-02-05 09:20:11 |
| a020520188-kxexhibit991.htm | 17876 | 2018-02-05 09:20:11 |
 aspentechnologylogoa20.jpg | 12241 | 2018-02-05 09:20:11 |