| article html file updated | 11 February 2020 15:02 CET | Update | https://www.mdpi.com/1999-5903/11/2/40 |
| article html file updated | 26 April 2019 18:40 CEST | Update | - |
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| article html file updated | 23 February 2019 11:43 CET | Original file | - |
| article pdf uploaded. | 23 February 2019 11:39 CET | Updated version of record | https://www.mdpi.com/1999-5903/11/2/40/pdf |
| article xml uploaded. | 23 February 2019 11:39 CET | Update | https://www.mdpi.com/1999-5903/11/2/40/xml |
| article xml file uploaded | 23 February 2019 11:39 CET | Update | - |
| article pdf uploaded. | 11 February 2019 12:59 CET | Version of Record | - |
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