| article html file updated | 1 September 2025 19:14 CEST | Update | https://www.mdpi.com/2227-9067/8/2/61 |
| article html file updated | 23 July 2022 21:19 CEST | Update | N/A |
| article html file updated | 21 January 2021 12:07 CET | Update | N/A |
| article pdf uploaded. | 21 January 2021 12:06 CET | Updated version of record | https://www.mdpi.com/2227-9067/8/2/61/pdf |
| article xml uploaded. | 21 January 2021 12:06 CET | Update | https://www.mdpi.com/2227-9067/8/2/61/xml |
| article xml file uploaded | 21 January 2021 12:06 CET | Update | N/A |
| article html file updated | 21 January 2021 09:07 CET | Update | N/A |
| article pdf uploaded. | 21 January 2021 09:06 CET | Updated version of record | https://www.mdpi.com/2227-9067/8/2/61/pdf-vor |
| article xml uploaded. | 21 January 2021 09:06 CET | Update | N/A |
| article xml file uploaded | 21 January 2021 09:06 CET | Update | N/A |
| article html file updated | 20 January 2021 16:00 CET | Original file | N/A |
| article pdf uploaded. | 20 January 2021 15:59 CET | Version of Record | https://www.mdpi.com/2227-9067/8/2/61/pdf-vor |
| article xml uploaded. | 20 January 2021 15:59 CET | Update | N/A |
| article xml file uploaded | 20 January 2021 15:59 CET | Original file | N/A |
