| article html file updated | 30 August 2025 14:29 CEST | Update | https://www.mdpi.com/1996-1073/12/9/1621 |
| article html file updated | 19 July 2022 18:02 CEST | Update | - |
| article html file updated | 12 February 2020 08:34 CET | Update | - |
| article html file updated | 19 October 2019 05:04 CEST | Update | - |
| article html file updated | 24 May 2019 11:40 CEST | Update | - |
| article html file updated | 29 April 2019 05:25 CEST | Original file | - |
| article pdf uploaded. | 29 April 2019 05:23 CEST | Version of Record | https://www.mdpi.com/1996-1073/12/9/1621/pdf |
| article xml uploaded. | 29 April 2019 05:23 CEST | Update | https://www.mdpi.com/1996-1073/12/9/1621/xml |
| article xml file uploaded | 29 April 2019 05:23 CEST | Original file | - |
