| article html file updated | 31 August 2025 15:55 CEST | Update | https://www.mdpi.com/2227-9717/8/4/404 |
| article html file updated | 21 July 2022 00:24 CEST | Update | N/A |
| article html file updated | 8 May 2020 18:00 CEST | Update | N/A |
| article html file updated | 19 April 2020 15:18 CEST | Update | N/A |
| article pdf uploaded. | 19 April 2020 15:17 CEST | Updated version of record | https://www.mdpi.com/2227-9717/8/4/404/pdf |
| article xml uploaded. | 19 April 2020 15:17 CEST | Update | https://www.mdpi.com/2227-9717/8/4/404/xml |
| article xml file uploaded | 19 April 2020 15:17 CEST | Update | N/A |
| article html file updated | 30 March 2020 14:59 CEST | Original file | N/A |
| article pdf uploaded. | 30 March 2020 14:58 CEST | Version of Record | https://www.mdpi.com/2227-9717/8/4/404/pdf-vor |
| article xml file uploaded | 30 March 2020 14:58 CEST | Original file | N/A |
