| article html file updated | 31 August 2025 15:34 CEST | Update | https://www.mdpi.com/2227-9059/8/4/69 |
| article html file updated | 21 July 2022 00:03 CEST | Update | N/A |
| article html file updated | 8 May 2020 12:29 CEST | Update | N/A |
| article html file updated | 31 March 2020 12:51 CEST | Original file | N/A |
| article pdf uploaded. | 31 March 2020 12:50 CEST | Updated version of record | https://www.mdpi.com/2227-9059/8/4/69/pdf |
| article xml uploaded. | 31 March 2020 12:50 CEST | Update | https://www.mdpi.com/2227-9059/8/4/69/xml |
| article xml file uploaded | 31 March 2020 12:49 CEST | Update | N/A |
| article pdf uploaded. | 26 March 2020 13:59 CET | Version of Record | https://www.mdpi.com/2227-9059/8/4/69/pdf-vor |
| article xml file uploaded | 26 March 2020 13:59 CET | Original file | N/A |
