| article html file updated | 1 September 2025 16:41 CEST | Update | https://www.mdpi.com/2227-7390/9/1/6 |
| article html file updated | 23 July 2022 06:29 CEST | Update | N/A |
| article html file updated | 23 December 2020 10:11 CET | Update | N/A |
| article html file updated | 23 December 2020 09:02 CET | Original file | N/A |
| article pdf uploaded. | 23 December 2020 09:01 CET | Updated version of record | https://www.mdpi.com/2227-7390/9/1/6/pdf |
| article xml uploaded. | 23 December 2020 09:01 CET | Update | https://www.mdpi.com/2227-7390/9/1/6/xml |
| article xml file uploaded | 23 December 2020 09:01 CET | Original file | N/A |
| article pdf uploaded. | 22 December 2020 16:33 CET | Updated version of record | https://www.mdpi.com/2227-7390/9/1/6/pdf-vor |
| article pdf uploaded. | 22 December 2020 16:29 CET | Updated version of record | https://www.mdpi.com/2227-7390/9/1/6/pdf-vor |
| article pdf uploaded. | 22 December 2020 16:18 CET | Updated version of record | https://www.mdpi.com/2227-7390/9/1/6/pdf-vor |
| article pdf uploaded. | 22 December 2020 16:12 CET | Updated version of record | https://www.mdpi.com/2227-7390/9/1/6/pdf-vor |
| article pdf uploaded. | 22 December 2020 16:08 CET | Updated version of record | https://www.mdpi.com/2227-7390/9/1/6/pdf-vor |
| article pdf uploaded. | 22 December 2020 16:02 CET | Updated version of record | https://www.mdpi.com/2227-7390/9/1/6/pdf-vor |
| article pdf uploaded. | 22 December 2020 12:32 CET | Version of Record | https://www.mdpi.com/2227-7390/9/1/6/pdf-vor |
