| article html file updated | 30 August 2025 21:48 CEST | Update | https://www.mdpi.com/1996-1073/12/13/2509 |
| article html file updated | 20 July 2022 14:47 CEST | Update | - |
| article html file updated | 12 February 2020 22:56 CET | Update | - |
| article html file updated | 18 July 2019 05:19 CEST | Update | - |
| article html file updated | 3 July 2019 06:51 CEST | Original file | - |
| article pdf uploaded. | 3 July 2019 06:50 CEST | Updated version of record | https://www.mdpi.com/1996-1073/12/13/2509/pdf |
| article xml uploaded. | 3 July 2019 06:50 CEST | Update | https://www.mdpi.com/1996-1073/12/13/2509/xml |
| article xml file uploaded | 3 July 2019 06:50 CEST | Update | - |
| article pdf uploaded. | 28 June 2019 16:29 CEST | Version of Record | https://www.mdpi.com/1996-1073/12/13/2509/pdf-vor |
| article xml file uploaded | 28 June 2019 16:29 CEST | Original file | - |