| article html file updated | 30 August 2025 20:23 CEST | Update | https://www.mdpi.com/2075-4701/9/6/621 |
| article html file updated | 19 July 2022 19:15 CEST | Update | - |
| article html file updated | 12 February 2020 15:55 CET | Update | - |
| article html file updated | 20 October 2019 21:57 CEST | Update | - |
| article html file updated | 5 July 2019 20:32 CEST | Update | - |
| article html file updated | 30 May 2019 12:50 CEST | Original file | - |
| article pdf uploaded. | 30 May 2019 12:49 CEST | Updated version of record | https://www.mdpi.com/2075-4701/9/6/621/pdf |
| article xml uploaded. | 30 May 2019 12:49 CEST | Update | https://www.mdpi.com/2075-4701/9/6/621/xml |
| article xml file uploaded | 30 May 2019 12:48 CEST | Update | - |
| article pdf uploaded. | 28 May 2019 16:35 CEST | Version of Record | https://www.mdpi.com/2075-4701/9/6/621/pdf-vor |
| article xml file uploaded | 28 May 2019 16:35 CEST | Original file | - |
