| article html file updated | 31 August 2025 11:43 CEST | Update | https://www.mdpi.com/2227-7390/8/2/252 |
| article html file updated | 20 July 2022 20:14 CEST | Update | - |
| article html file updated | 6 March 2020 07:32 CET | Update | - |
| article html file updated | 27 February 2020 06:45 CET | Original file | - |
| article pdf uploaded. | 27 February 2020 06:43 CET | Updated version of record | https://www.mdpi.com/2227-7390/8/2/252/pdf |
| article xml uploaded. | 27 February 2020 06:43 CET | Update | https://www.mdpi.com/2227-7390/8/2/252/xml |
| article xml file uploaded | 27 February 2020 06:43 CET | Update | - |
| article pdf uploaded. | 14 February 2020 15:41 CET | Version of Record | https://www.mdpi.com/2227-7390/8/2/252/pdf-vor |
| article xml file uploaded | 14 February 2020 15:41 CET | Original file | - |
