| article html file updated | 2 September 2025 00:26 CEST | Update | https://www.mdpi.com/1424-8220/21/6/2015 |
| article html file updated | 25 July 2022 07:24 CEST | Update | - |
| article html file updated | 13 March 2021 01:48 CET | Update | - |
| article pdf uploaded. | 13 March 2021 01:46 CET | Updated version of record | https://www.mdpi.com/1424-8220/21/6/2015/pdf |
| article xml uploaded. | 13 March 2021 01:46 CET | Update | https://www.mdpi.com/1424-8220/21/6/2015/xml |
| article xml file uploaded | 13 March 2021 01:46 CET | Update | - |
| article html file updated | 12 March 2021 14:58 CET | Original file | - |
| article pdf uploaded. | 12 March 2021 14:56 CET | Version of Record | https://www.mdpi.com/1424-8220/21/6/2015/pdf-vor |
| article xml file uploaded | 12 March 2021 14:56 CET | Original file | - |
