| article html file updated | 31 August 2025 01:52 CEST | Update | https://www.mdpi.com/2227-7080/7/4/69 |
| article html file updated | 20 July 2022 02:53 CEST | Update | - |
| article html file updated | 13 February 2020 19:43 CET | Update | - |
| article html file updated | 27 September 2019 04:37 CEST | Original file | - |
| article pdf uploaded. | 27 September 2019 04:35 CEST | Updated version of record | https://www.mdpi.com/2227-7080/7/4/69/pdf |
| article xml uploaded. | 27 September 2019 04:35 CEST | Update | https://www.mdpi.com/2227-7080/7/4/69/xml |
| article xml file uploaded | 27 September 2019 04:35 CEST | Update | - |
| article pdf uploaded. | 23 September 2019 15:34 CEST | Version of Record | https://www.mdpi.com/2227-7080/7/4/69/pdf-vor |
| article xml file uploaded | 23 September 2019 15:34 CEST | Original file | - |
