| article html file updated | 31 August 2025 07:01 CEST | Update | https://www.mdpi.com/1996-1073/13/1/34 |
| article html file updated | 19 July 2022 21:15 CEST | Update | - |
| article html file updated | 14 February 2020 20:14 CET | Update | - |
| article html file updated | 19 January 2020 07:54 CET | Original file | - |
| article xml uploaded. | 19 January 2020 07:52 CET | Update | https://www.mdpi.com/1996-1073/13/1/34/xml |
| article xml uploaded. | 19 January 2020 07:52 CET | Update | - |
| article xml uploaded. | 19 January 2020 07:52 CET | Update | - |
| article pdf uploaded. | 25 December 2019 12:25 CET | Updated version of record | https://www.mdpi.com/1996-1073/13/1/34/pdf |
| article xml uploaded. | 25 December 2019 12:25 CET | Update | - |
| article xml file uploaded | 25 December 2019 12:25 CET | Update | - |
| article pdf uploaded. | 19 December 2019 15:55 CET | Version of Record | https://www.mdpi.com/1996-1073/13/1/34/pdf-vor |
| article xml file uploaded | 19 December 2019 15:55 CET | Original file | - |
