| article html file updated | 14 August 2026 17:09 CEST | Update | https://www.mdpi.com/1660-4601/14/9/991 |
| article html file updated | 8 February 2020 15:00 CET | Update | N/A |
| article html file updated | 26 September 2019 21:03 CEST | Update | N/A |
| article html file updated | 3 May 2019 04:10 CEST | Update | N/A |
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| article html file updated | 31 August 2017 13:27 CEST | Original file | N/A |
| article xml uploaded. | 31 August 2017 13:25 CEST | Update | https://www.mdpi.com/1660-4601/14/9/991/xml |
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| article pdf uploaded. | 31 August 2017 13:25 CEST | Version of Record | https://www.mdpi.com/1660-4601/14/9/991/pdf |
