| article html file updated | 31 August 2025 00:19 CEST | Update | https://www.mdpi.com/1999-4907/10/9/721 |
| article html file updated | 20 July 2022 04:47 CEST | Update | - |
| article html file updated | 13 February 2020 11:44 CET | Update | - |
| article html file updated | 27 September 2019 14:38 CEST | Update | - |
| article html file updated | 22 August 2019 13:19 CEST | Original file | - |
| article pdf uploaded. | 22 August 2019 13:18 CEST | Version of Record | https://www.mdpi.com/1999-4907/10/9/721/pdf |
| article xml uploaded. | 22 August 2019 13:18 CEST | Update | https://www.mdpi.com/1999-4907/10/9/721/xml |
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