| article html file updated | 31 August 2025 10:11 CEST | Update | https://www.mdpi.com/2218-1997/6/2/26 |
| article html file updated | 20 July 2022 18:42 CEST | Update | N/A |
| article html file updated | 26 February 2020 03:45 CET | Original file | N/A |
| article pdf uploaded. | 26 February 2020 03:43 CET | Updated version of record | https://www.mdpi.com/2218-1997/6/2/26/pdf |
| article xml uploaded. | 26 February 2020 03:43 CET | Update | https://www.mdpi.com/2218-1997/6/2/26/xml |
| article xml file uploaded | 26 February 2020 03:43 CET | Update | N/A |
| article pdf uploaded. | 29 January 2020 11:37 CET | Version of Record | https://www.mdpi.com/2218-1997/6/2/26/pdf-vor |
| article xml file uploaded | 29 January 2020 11:37 CET | Original file | N/A |
