| article html file updated | 31 August 2025 17:36 CEST | Update | https://www.mdpi.com/2073-4409/9/4/990 |
| article html file updated | 21 July 2022 02:04 CEST | Update | - |
| article html file updated | 8 May 2020 13:07 CEST | Update | - |
| article html file updated | 26 April 2020 11:08 CEST | Original file | - |
| article pdf uploaded. | 26 April 2020 11:07 CEST | Updated version of record | https://www.mdpi.com/2073-4409/9/4/990/pdf |
| article xml uploaded. | 26 April 2020 11:07 CEST | Update | https://www.mdpi.com/2073-4409/9/4/990/xml |
| article xml file uploaded | 26 April 2020 11:07 CEST | Update | - |
| article pdf uploaded. | 16 April 2020 13:21 CEST | Version of Record | https://www.mdpi.com/2073-4409/9/4/990/pdf-vor |
| article xml file uploaded | 16 April 2020 13:21 CEST | Original file | - |
