| article html file updated | 7 September 2025 01:54 CEST | Update | https://www.mdpi.com/2226-471X/6/4/156 |
| article html file updated | 22 August 2025 01:24 CEST | Update | - |
| article html file updated | 30 July 2022 08:23 CEST | Update | - |
| article html file updated | 13 October 2021 06:01 CEST | Update | - |
| article pdf uploaded. | 13 October 2021 05:59 CEST | Updated version of record | https://www.mdpi.com/2226-471X/6/4/156/pdf |
| article xml uploaded. | 13 October 2021 05:59 CEST | Update | https://www.mdpi.com/2226-471X/6/4/156/xml |
| article xml file uploaded | 13 October 2021 05:59 CEST | Update | - |
| article html file updated | 29 September 2021 12:16 CEST | Original file | - |
| article pdf uploaded. | 29 September 2021 12:14 CEST | Version of Record | https://www.mdpi.com/2226-471X/6/4/156/pdf-vor |
| article xml uploaded. | 29 September 2021 12:14 CEST | Update | - |
| article xml file uploaded | 29 September 2021 12:14 CEST | Original file | - |
