| article html file updated | 31 August 2025 14:59 CEST | Update | https://www.mdpi.com/1422-0067/21/6/2137 |
| article html file updated | 20 July 2022 23:29 CEST | Update | - |
| article html file updated | 2 April 2020 03:31 CEST | Update | - |
| article html file updated | 23 March 2020 07:00 CET | Original file | - |
| article pdf uploaded. | 23 March 2020 06:59 CET | Updated version of record | https://www.mdpi.com/1422-0067/21/6/2137/pdf |
| article xml uploaded. | 23 March 2020 06:59 CET | Update | https://www.mdpi.com/1422-0067/21/6/2137/xml |
| article xml file uploaded | 23 March 2020 06:59 CET | Update | - |
| article pdf uploaded. | 20 March 2020 12:26 CET | Version of Record | https://www.mdpi.com/1422-0067/21/6/2137/pdf-vor |
| article xml file uploaded | 20 March 2020 12:26 CET | Original file | - |
