| article html file updated | 17 August 2026 07:20 CEST | Update | https://www.mdpi.com/2223-7747/9/4/420 |
| article html file updated | 31 August 2025 15:53 CEST | Update | N/A |
| article html file updated | 21 July 2022 00:22 CEST | Update | N/A |
| article html file updated | 9 May 2020 04:24 CEST | Update | N/A |
| article html file updated | 30 March 2020 13:16 CEST | Original file | N/A |
| article pdf uploaded. | 30 March 2020 13:14 CEST | Version of Record | https://www.mdpi.com/2223-7747/9/4/420/pdf |
| article xml uploaded. | 30 March 2020 13:14 CEST | Update | https://www.mdpi.com/2223-7747/9/4/420/xml |
| article xml file uploaded | 30 March 2020 13:14 CEST | Original file | N/A |
