| article html file updated | 1 September 2025 06:29 CEST | Update | https://www.mdpi.com/2218-1997/6/9/134 |
| article html file updated | 22 July 2022 04:33 CEST | Update | - |
| article html file updated | 7 October 2020 11:42 CEST | Update | - |
| article html file updated | 25 August 2020 11:53 CEST | Original file | - |
| article pdf uploaded. | 25 August 2020 11:51 CEST | Updated version of record | https://www.mdpi.com/2218-1997/6/9/134/pdf |
| article xml uploaded. | 25 August 2020 11:51 CEST | Update | https://www.mdpi.com/2218-1997/6/9/134/xml |
| article xml file uploaded | 25 August 2020 11:51 CEST | Original file | - |
| article pdf uploaded. | 24 August 2020 10:49 CEST | Updated version of record | https://www.mdpi.com/2218-1997/6/9/134/pdf-vor |
| article pdf uploaded. | 24 August 2020 10:49 CEST | Version of Record | https://www.mdpi.com/2218-1997/6/9/134/pdf-vor |
