| article html file updated | 31 August 2025 18:48 CEST | Update | https://www.mdpi.com/2413-8851/4/2/21 |
| article html file updated | 21 July 2022 03:15 CEST | Update | N/A |
| article html file updated | 13 May 2020 14:07 CEST | Original file | N/A |
| article pdf uploaded. | 13 May 2020 14:06 CEST | Updated version of record | https://www.mdpi.com/2413-8851/4/2/21/pdf |
| article xml uploaded. | 13 May 2020 14:06 CEST | Update | https://www.mdpi.com/2413-8851/4/2/21/xml |
| article xml file uploaded | 13 May 2020 14:06 CEST | Update | N/A |
| article pdf uploaded. | 28 April 2020 11:59 CEST | Version of Record | https://www.mdpi.com/2413-8851/4/2/21/pdf-vor |
| article xml file uploaded | 28 April 2020 11:59 CEST | Original file | N/A |
