| article html file updated | 31 August 2025 15:03 CEST | Update | https://www.mdpi.com/1422-0067/21/6/2157 |
| article html file updated | 20 July 2022 23:33 CEST | Update | - |
| article html file updated | 2 April 2020 03:45 CEST | Update | - |
| article html file updated | 23 March 2020 15:02 CET | Original file | - |
| article pdf uploaded. | 23 March 2020 15:01 CET | Updated version of record | https://www.mdpi.com/1422-0067/21/6/2157/pdf |
| article xml uploaded. | 23 March 2020 15:01 CET | Update | https://www.mdpi.com/1422-0067/21/6/2157/xml |
| article xml file uploaded | 23 March 2020 15:01 CET | Update | - |
| article pdf uploaded. | 20 March 2020 16:29 CET | Version of Record | https://www.mdpi.com/1422-0067/21/6/2157/pdf-vor |
| article xml file uploaded | 20 March 2020 16:29 CET | Original file | - |
