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| 0000929940-18-000028-index.html | 2018-08-10 17:00:49 | |
| 0000929940-18-000028.txt | 2018-08-10 17:00:49 | |
| a081020188-k.htm | 60353 | 2018-08-10 17:00:49 |
| a081020188-kxexhibit991.htm | 10652 | 2018-08-10 17:00:49 |
 aspentechnologylogoa24.jpg | 12241 | 2018-08-10 17:00:49 |