| article html file updated | 31 August 2025 09:17 CEST | Update | https://www.mdpi.com/2304-6740/8/1/6 |
| article html file updated | 20 July 2022 17:49 CEST | Update | - |
| article html file updated | 15 February 2020 03:54 CET | Update | - |
| article html file updated | 5 February 2020 20:54 CET | Update | - |
| article html file updated | 17 January 2020 13:59 CET | Original file | - |
| article pdf uploaded. | 17 January 2020 13:57 CET | Version of Record | https://www.mdpi.com/2304-6740/8/1/6/pdf |
| article xml uploaded. | 17 January 2020 13:57 CET | Update | https://www.mdpi.com/2304-6740/8/1/6/xml |
| article xml file uploaded | 17 January 2020 13:57 CET | Original file | - |
