| article html file updated | 25 December 2025 03:56 CET | Update | https://www.mdpi.com/2218-1997/7/2/42 |
| article html file updated | 1 September 2025 21:29 CEST | Update | N/A |
| article html file updated | 25 July 2022 02:03 CEST | Update | N/A |
| article html file updated | 23 February 2021 10:04 CET | Update | N/A |
| article html file updated | 23 February 2021 06:42 CET | Original file | N/A |
| article pdf uploaded. | 23 February 2021 06:41 CET | Updated version of record | https://www.mdpi.com/2218-1997/7/2/42/pdf |
| article xml uploaded. | 23 February 2021 06:41 CET | Update | https://www.mdpi.com/2218-1997/7/2/42/xml |
| article xml file uploaded | 23 February 2021 06:41 CET | Original file | N/A |
| article pdf uploaded. | 12 February 2021 10:21 CET | Version of Record | https://www.mdpi.com/2218-1997/7/2/42/pdf-vor |
