| article html file updated | 31 August 2025 15:50 CEST | Update | https://www.mdpi.com/2079-6439/8/4/21 |
| article html file updated | 21 July 2022 00:19 CEST | Update | N/A |
| article html file updated | 8 May 2020 19:32 CEST | Update | N/A |
| article html file updated | 8 April 2020 13:51 CEST | Original file | N/A |
| article pdf uploaded. | 8 April 2020 13:49 CEST | Updated version of record | https://www.mdpi.com/2079-6439/8/4/21/pdf |
| article xml uploaded. | 8 April 2020 13:49 CEST | Update | https://www.mdpi.com/2079-6439/8/4/21/xml |
| article xml file uploaded | 8 April 2020 13:49 CEST | Update | N/A |
| article pdf uploaded. | 29 March 2020 13:38 CEST | Version of Record | https://www.mdpi.com/2079-6439/8/4/21/pdf-vor |
| article xml file uploaded | 29 March 2020 13:38 CEST | Original file | N/A |
