| article html file updated | 31 August 2025 09:59 CEST | Update | https://www.mdpi.com/2218-1997/6/2/24 |
| article html file updated | 20 July 2022 18:30 CEST | Update | N/A |
| article html file updated | 27 February 2020 12:23 CET | Original file | N/A |
| article pdf uploaded. | 27 February 2020 12:22 CET | Updated version of record | https://www.mdpi.com/2218-1997/6/2/24/pdf |
| article xml uploaded. | 27 February 2020 12:22 CET | Update | https://www.mdpi.com/2218-1997/6/2/24/xml |
| article xml file uploaded | 27 February 2020 12:22 CET | Update | N/A |
| article pdf uploaded. | 26 January 2020 05:37 CET | Version of Record | https://www.mdpi.com/2218-1997/6/2/24/pdf-vor |
| article xml file uploaded | 26 January 2020 05:37 CET | Original file | N/A |
