| article html file updated | 1 September 2025 21:32 CEST | Update | https://www.mdpi.com/2071-1050/13/4/1999 |
| article html file updated | 22 August 2025 00:38 CEST | Update | N/A |
| article html file updated | 22 February 2021 07:36 CET | Original file | N/A |
| article pdf uploaded. | 22 February 2021 07:35 CET | Updated version of record | https://www.mdpi.com/2071-1050/13/4/1999/pdf |
| article xml uploaded. | 22 February 2021 07:35 CET | Update | https://www.mdpi.com/2071-1050/13/4/1999/xml |
| article xml file uploaded | 22 February 2021 07:35 CET | Original file | N/A |
| article pdf uploaded. | 12 February 2021 14:56 CET | Version of Record | https://www.mdpi.com/2071-1050/13/4/1999/pdf-vor |
