| article html file updated | 31 August 2025 10:27 CEST | Update | https://www.mdpi.com/2305-7084/4/1/9 |
| article html file updated | 20 July 2022 18:58 CEST | Update | - |
| article html file updated | 21 March 2020 05:02 CET | Original file | - |
| article pdf uploaded. | 21 March 2020 05:00 CET | Updated version of record | https://www.mdpi.com/2305-7084/4/1/9/pdf |
| article xml uploaded. | 21 March 2020 05:00 CET | Update | https://www.mdpi.com/2305-7084/4/1/9/xml |
| article xml file uploaded | 21 March 2020 05:00 CET | Update | - |
| article pdf uploaded. | 7 February 2020 05:58 CET | Updated version of record | https://www.mdpi.com/2305-7084/4/1/9/pdf-vor |
| article pdf uploaded. | 1 February 2020 12:56 CET | Updated version of record | https://www.mdpi.com/2305-7084/4/1/9/pdf-vor |
| article xml file uploaded | 1 February 2020 12:56 CET | Update | - |
| article pdf uploaded. | 1 February 2020 12:55 CET | Version of Record | https://www.mdpi.com/2305-7084/4/1/9/pdf-vor |
| article xml file uploaded | 1 February 2020 12:55 CET | Original file | - |
