| article html file updated | 31 August 2025 12:05 CEST | Update | https://www.mdpi.com/2411-9660/4/1/6 |
| article html file updated | 20 July 2022 20:35 CEST | Update | - |
| article html file updated | 26 March 2020 09:09 CET | Original file | - |
| article pdf uploaded. | 26 March 2020 09:05 CET | Updated version of record | https://www.mdpi.com/2411-9660/4/1/6/pdf |
| article xml uploaded. | 26 March 2020 09:05 CET | Update | https://www.mdpi.com/2411-9660/4/1/6/xml |
| article xml file uploaded | 26 March 2020 09:05 CET | Update | - |
| article pdf uploaded. | 19 February 2020 11:50 CET | Version of Record | https://www.mdpi.com/2411-9660/4/1/6/pdf-vor |
| article xml file uploaded | 19 February 2020 11:50 CET | Original file | - |
