| article html file updated | 31 August 2025 03:20 CEST | Update | https://www.mdpi.com/1996-1073/12/20/4021 |
| article html file updated | 20 July 2022 01:07 CEST | Update | N/A |
| article html file updated | 14 February 2020 03:04 CET | Update | N/A |
| article html file updated | 29 October 2019 22:50 CET | Update | N/A |
| article html file updated | 23 October 2019 12:23 CEST | Original file | N/A |
| article pdf uploaded. | 23 October 2019 12:21 CEST | Updated version of record | https://www.mdpi.com/1996-1073/12/20/4021/pdf |
| article xml uploaded. | 23 October 2019 12:21 CEST | Update | https://www.mdpi.com/1996-1073/12/20/4021/xml |
| article xml file uploaded | 23 October 2019 12:20 CEST | Update | N/A |
| article pdf uploaded. | 22 October 2019 17:25 CEST | Version of Record | https://www.mdpi.com/1996-1073/12/20/4021/pdf-vor |
| article xml file uploaded | 22 October 2019 17:25 CEST | Original file | N/A |
