| article html file updated | 30 July 2022 20:59 CEST | Update | https://www.mdpi.com/2227-7072/9/4/68 |
| article html file updated | 8 December 2021 04:30 CET | Original file | N/A |
| article pdf uploaded. | 8 December 2021 04:28 CET | Updated version of record | https://www.mdpi.com/2227-7072/9/4/68/pdf |
| article xml uploaded. | 8 December 2021 04:28 CET | Update | https://www.mdpi.com/2227-7072/9/4/68/xml |
| article xml file uploaded | 8 December 2021 04:28 CET | Original file | N/A |
| article pdf uploaded. | 7 December 2021 15:54 CET | Version of Record | https://www.mdpi.com/2227-7072/9/4/68/pdf-vor |
