| article html file updated | 24 December 2025 19:01 CET | Update | https://www.mdpi.com/2227-9067/7/6/51 |
| article html file updated | 31 August 2025 21:43 CEST | Update | - |
| article html file updated | 21 July 2022 06:08 CEST | Update | - |
| article html file updated | 9 October 2020 04:03 CEST | Update | - |
| article html file updated | 6 July 2020 06:24 CEST | Update | - |
| article html file updated | 29 May 2020 07:49 CEST | Original file | - |
| article pdf uploaded. | 29 May 2020 07:48 CEST | Updated version of record | https://www.mdpi.com/2227-9067/7/6/51/pdf |
| article xml uploaded. | 29 May 2020 07:48 CEST | Update | https://www.mdpi.com/2227-9067/7/6/51/xml |
| article xml file uploaded | 29 May 2020 07:48 CEST | Original file | - |
| article pdf uploaded. | 27 May 2020 10:47 CEST | Version of Record | https://www.mdpi.com/2227-9067/7/6/51/pdf-vor |