| article html file updated | 31 August 2025 22:17 CEST | Update | https://www.mdpi.com/1999-4923/12/6/503 |
| article html file updated | 21 July 2022 06:41 CEST | Update | N/A |
| article html file updated | 1 June 2020 13:29 CEST | Original file | N/A |
| article pdf uploaded. | 1 June 2020 13:27 CEST | Version of Record | https://www.mdpi.com/1999-4923/12/6/503/pdf |
| article xml uploaded. | 1 June 2020 13:27 CEST | Update | https://www.mdpi.com/1999-4923/12/6/503/xml |
| article xml file uploaded | 1 June 2020 13:27 CEST | Original file | N/A |
