| article html file updated | 31 August 2025 10:35 CEST | Update | https://www.mdpi.com/2227-7072/8/1/6 |
| article html file updated | 20 July 2022 19:07 CEST | Update | - |
| article html file updated | 2 April 2020 08:56 CEST | Update | - |
| article html file updated | 26 March 2020 10:20 CET | Original file | - |
| article pdf uploaded. | 26 March 2020 10:19 CET | Updated version of record | https://www.mdpi.com/2227-7072/8/1/6/pdf |
| article xml uploaded. | 26 March 2020 10:19 CET | Update | https://www.mdpi.com/2227-7072/8/1/6/xml |
| article xml file uploaded | 26 March 2020 10:19 CET | Update | - |
| article pdf uploaded. | 3 February 2020 14:58 CET | Version of Record | https://www.mdpi.com/2227-7072/8/1/6/pdf-vor |
| article xml file uploaded | 3 February 2020 14:58 CET | Original file | - |
