| article html file updated | 1 September 2025 13:46 CEST | Update | https://www.mdpi.com/2218-1997/6/11/212 |
| article html file updated | 23 July 2022 01:34 CEST | Update | - |
| article html file updated | 27 November 2020 06:59 CET | Update | - |
| article html file updated | 19 November 2020 08:24 CET | Update | - |
| article pdf uploaded. | 19 November 2020 08:23 CET | Updated version of record | https://www.mdpi.com/2218-1997/6/11/212/pdf |
| article xml uploaded. | 19 November 2020 08:23 CET | Update | https://www.mdpi.com/2218-1997/6/11/212/xml |
| article xml file uploaded | 19 November 2020 08:23 CET | Update | - |
| article html file updated | 19 November 2020 03:49 CET | Original file | - |
| article pdf uploaded. | 19 November 2020 03:47 CET | Updated version of record | https://www.mdpi.com/2218-1997/6/11/212/pdf-vor |
| article xml uploaded. | 19 November 2020 03:47 CET | Update | - |
| article xml file uploaded | 19 November 2020 03:47 CET | Original file | - |
| article pdf uploaded. | 18 November 2020 12:10 CET | Version of Record | https://www.mdpi.com/2218-1997/6/11/212/pdf-vor |
