| article html file updated | 14 August 2026 20:45 CEST | Update | https://www.mdpi.com/2504-3900/2/1/71 |
| article html file updated | 26 September 2022 11:02 CEST | Original file | N/A |
| article pdf uploaded. | 20 March 2018 03:40 CET | Updated version of record | https://www.mdpi.com/2504-3900/2/1/71/pdf |
| article pdf uploaded. | 5 January 2018 08:39 CET | Version of Record | https://www.mdpi.com/2504-3900/2/1/71/pdf-vor |
