| article html file updated | 20 August 2026 11:23 CEST | Update | https://www.mdpi.com/2226-4787/9/4/156 |
| article html file updated | 7 September 2025 01:28 CEST | Update | N/A |
| article html file updated | 30 July 2022 07:16 CEST | Update | N/A |
| article html file updated | 24 September 2021 07:48 CEST | Update | N/A |
| article pdf uploaded. | 24 September 2021 07:47 CEST | Updated version of record | https://www.mdpi.com/2226-4787/9/4/156/pdf |
| article xml uploaded. | 24 September 2021 07:47 CEST | Update | https://www.mdpi.com/2226-4787/9/4/156/xml |
| article xml file uploaded | 24 September 2021 07:47 CEST | Update | N/A |
| article html file updated | 24 September 2021 07:47 CEST | Update | N/A |
| article html file updated | 24 September 2021 07:47 CEST | Original file | N/A |
| article pdf uploaded. | 24 September 2021 07:45 CEST | Updated version of record | https://www.mdpi.com/2226-4787/9/4/156/pdf-vor |
| article xml uploaded. | 24 September 2021 07:45 CEST | Update | N/A |
| article xml file uploaded | 24 September 2021 07:45 CEST | Original file | N/A |
| article pdf uploaded. | 23 September 2021 15:25 CEST | Version of Record | https://www.mdpi.com/2226-4787/9/4/156/pdf-vor |
