| article html file updated | 26 September 2022 16:10 CEST | Original file | https://www.mdpi.com/2504-3900/2/1/84 |
| article pdf uploaded. | 6 February 2018 09:45 CET | Updated version of record | https://www.mdpi.com/2504-3900/2/1/84/pdf |
| article pdf uploaded. | 9 January 2018 09:03 CET | Version of Record | https://www.mdpi.com/2504-3900/2/1/84/pdf-vor |
