| article html file updated | 18 August 2026 21:11 CEST | Update | https://www.mdpi.com/1996-1073/14/4/820 |
| article html file updated | 1 September 2025 20:44 CEST | Update | N/A |
| article html file updated | 24 July 2022 15:00 CEST | Update | N/A |
| article html file updated | 6 February 2021 05:03 CET | Original file | N/A |
| article pdf uploaded. | 6 February 2021 05:02 CET | Updated version of record | https://www.mdpi.com/1996-1073/14/4/820/pdf |
| article xml uploaded. | 6 February 2021 05:02 CET | Update | https://www.mdpi.com/1996-1073/14/4/820/xml |
| article xml file uploaded | 6 February 2021 05:02 CET | Original file | N/A |
| article pdf uploaded. | 4 February 2021 15:22 CET | Updated version of record | https://www.mdpi.com/1996-1073/14/4/820/pdf-vor |
| article pdf uploaded. | 4 February 2021 14:14 CET | Version of Record | https://www.mdpi.com/1996-1073/14/4/820/pdf-vor |
