| article html file updated | 25 January 2024 10:42 CET | Original file | https://www.mdpi.com/2504-3900/24/1/6 |
| article pdf uploaded. | 17 February 2020 08:04 CET | Updated version of record | https://www.mdpi.com/2504-3900/24/1/6/pdf |
| article pdf uploaded. | 26 September 2019 08:59 CEST | Version of Record | https://www.mdpi.com/2504-3900/24/1/6/pdf-vor |
