| article html file updated | 1 September 2025 11:54 CEST | Update | https://www.mdpi.com/2079-9721/8/4/39 |
| article html file updated | 22 July 2022 22:31 CEST | Update | N/A |
| article html file updated | 29 October 2020 01:59 CET | Update | N/A |
| article pdf uploaded. | 29 October 2020 01:57 CET | Updated version of record | https://www.mdpi.com/2079-9721/8/4/39/pdf |
| article xml uploaded. | 29 October 2020 01:57 CET | Update | https://www.mdpi.com/2079-9721/8/4/39/xml |
| article xml file uploaded | 29 October 2020 01:57 CET | Update | N/A |
| article html file updated | 26 October 2020 11:36 CET | Original file | N/A |
| article pdf uploaded. | 26 October 2020 11:32 CET | Version of Record | https://www.mdpi.com/2079-9721/8/4/39/pdf-vor |
| article xml uploaded. | 26 October 2020 11:32 CET | Update | N/A |
| article xml file uploaded | 26 October 2020 11:32 CET | Original file | N/A |
