| article html file updated | 31 August 2025 09:40 CEST | Update | https://www.mdpi.com/2223-7747/9/2/137 |
| article html file updated | 20 July 2022 18:11 CEST | Update | - |
| article html file updated | 6 March 2020 08:20 CET | Update | - |
| article html file updated | 17 February 2020 09:30 CET | Original file | - |
| article pdf uploaded. | 17 February 2020 09:29 CET | Updated version of record | https://www.mdpi.com/2223-7747/9/2/137/pdf |
| article xml uploaded. | 17 February 2020 09:29 CET | Update | https://www.mdpi.com/2223-7747/9/2/137/xml |
| article xml file uploaded | 17 February 2020 09:29 CET | Update | - |
| article supplementary file uploaded. | 22 January 2020 09:03 CET | - | https://www.mdpi.com/2223-7747/9/2/137#supplementary |
| article pdf uploaded. | 22 January 2020 09:03 CET | Version of Record | https://www.mdpi.com/2223-7747/9/2/137/pdf-vor |
| article xml file uploaded | 22 January 2020 09:03 CET | Original file | - |
