| article html file updated | 31 August 2025 10:25 CEST | Update | https://www.mdpi.com/2227-7390/8/2/171 |
| article html file updated | 20 July 2022 18:56 CEST | Update | - |
| article html file updated | 6 March 2020 07:46 CET | Update | - |
| article html file updated | 15 February 2020 06:55 CET | Update | - |
| article html file updated | 14 February 2020 13:25 CET | Original file | - |
| article pdf uploaded. | 14 February 2020 13:24 CET | Updated version of record | https://www.mdpi.com/2227-7390/8/2/171/pdf |
| article xml uploaded. | 14 February 2020 13:24 CET | Update | https://www.mdpi.com/2227-7390/8/2/171/xml |
| article xml file uploaded | 14 February 2020 13:24 CET | Update | - |
| article pdf uploaded. | 1 February 2020 09:56 CET | Version of Record | https://www.mdpi.com/2227-7390/8/2/171/pdf-vor |
| article xml file uploaded | 1 February 2020 09:56 CET | Original file | - |
