| article html file updated | 1 September 2025 14:39 CEST | Update | https://www.mdpi.com/2218-1997/6/12/226 |
| article html file updated | 23 July 2022 02:56 CEST | Update | - |
| article html file updated | 3 December 2020 02:36 CET | Original file | - |
| article pdf uploaded. | 3 December 2020 02:35 CET | Updated version of record | https://www.mdpi.com/2218-1997/6/12/226/pdf |
| article xml uploaded. | 3 December 2020 02:35 CET | Update | https://www.mdpi.com/2218-1997/6/12/226/xml |
| article xml file uploaded | 3 December 2020 02:35 CET | Original file | - |
| article pdf uploaded. | 27 November 2020 16:53 CET | Version of Record | https://www.mdpi.com/2218-1997/6/12/226/pdf-vor |
