| article html file updated | 20 August 2026 05:15 CEST | Update | https://www.mdpi.com/2227-7390/9/16/1997 |
| article html file updated | 6 September 2025 23:19 CEST | Update | N/A |
| article html file updated | 28 July 2022 07:03 CEST | Update | N/A |
| article html file updated | 24 August 2021 10:05 CEST | Update | N/A |
| article html file updated | 23 August 2021 10:09 CEST | Original file | N/A |
| article pdf uploaded. | 23 August 2021 10:05 CEST | Updated version of record | https://www.mdpi.com/2227-7390/9/16/1997/pdf |
| article xml uploaded. | 23 August 2021 10:05 CEST | Update | https://www.mdpi.com/2227-7390/9/16/1997/xml |
| article xml file uploaded | 23 August 2021 10:05 CEST | Original file | N/A |
| article pdf uploaded. | 20 August 2021 16:03 CEST | Version of Record | https://www.mdpi.com/2227-7390/9/16/1997/pdf-vor |
