| article html file updated | 31 August 2025 15:26 CEST | Update | https://www.mdpi.com/2223-7747/9/4/407 |
| article html file updated | 20 July 2022 23:56 CEST | Update | - |
| article html file updated | 9 May 2020 04:22 CEST | Update | - |
| article html file updated | 31 March 2020 14:07 CEST | Original file | - |
| article pdf uploaded. | 31 March 2020 14:06 CEST | Updated version of record | https://www.mdpi.com/2223-7747/9/4/407/pdf |
| article xml uploaded. | 31 March 2020 14:06 CEST | Update | https://www.mdpi.com/2223-7747/9/4/407/xml |
| article xml file uploaded | 31 March 2020 14:06 CEST | Update | - |
| article pdf uploaded. | 25 March 2020 13:24 CET | Version of Record | https://www.mdpi.com/2223-7747/9/4/407/pdf-vor |
| article xml file uploaded | 25 March 2020 13:24 CET | Original file | - |
