| article html file updated | 26 December 2025 05:36 CET | Update | https://www.mdpi.com/2226-471X/6/4/181 |
| article html file updated | 7 September 2025 03:58 CEST | Update | N/A |
| article html file updated | 30 July 2022 13:49 CEST | Update | N/A |
| article html file updated | 2 November 2021 09:36 CET | Update | N/A |
| article pdf uploaded. | 2 November 2021 09:35 CET | Updated version of record | https://www.mdpi.com/2226-471X/6/4/181/pdf |
| article xml uploaded. | 2 November 2021 09:35 CET | Update | https://www.mdpi.com/2226-471X/6/4/181/xml |
| article xml file uploaded | 2 November 2021 09:35 CET | Update | N/A |
| article html file updated | 29 October 2021 12:07 CEST | Original file | N/A |
| article pdf uploaded. | 29 October 2021 12:06 CEST | Version of Record | https://www.mdpi.com/2226-471X/6/4/181/pdf-vor |
| article xml uploaded. | 29 October 2021 12:06 CEST | Update | N/A |
| article xml file uploaded | 29 October 2021 12:06 CEST | Original file | N/A |
