| article html file updated | 31 August 2025 15:58 CEST | Update | https://www.mdpi.com/2223-7747/9/4/424 |
| article html file updated | 21 July 2022 00:27 CEST | Update | N/A |
| article html file updated | 9 May 2020 04:25 CEST | Update | N/A |
| article html file updated | 31 March 2020 09:41 CEST | Original file | N/A |
| article pdf uploaded. | 31 March 2020 09:40 CEST | Version of Record | https://www.mdpi.com/2223-7747/9/4/424/pdf |
| article xml uploaded. | 31 March 2020 09:40 CEST | Update | https://www.mdpi.com/2223-7747/9/4/424/xml |
| article xml file uploaded | 31 March 2020 09:40 CEST | Original file | N/A |
