| article html file updated | 31 August 2025 13:11 CEST | Update | https://www.mdpi.com/2223-7747/9/3/309 |
| article html file updated | 20 July 2022 21:40 CEST | Update | - |
| article html file updated | 1 April 2020 18:23 CEST | Update | - |
| article html file updated | 15 March 2020 12:14 CET | Original file | - |
| article pdf uploaded. | 15 March 2020 12:12 CET | Updated version of record | https://www.mdpi.com/2223-7747/9/3/309/pdf |
| article xml uploaded. | 15 March 2020 12:12 CET | Update | https://www.mdpi.com/2223-7747/9/3/309/xml |
| article xml file uploaded | 15 March 2020 12:12 CET | Update | - |
| article pdf uploaded. | 1 March 2020 13:47 CET | Version of Record | https://www.mdpi.com/2223-7747/9/3/309/pdf-vor |
| article xml file uploaded | 1 March 2020 13:47 CET | Original file | - |
