| article html file updated | 7 February 2020 20:43 CET | Update | https://www.mdpi.com/2412-3811/2/1/1 |
| article html file updated | 22 September 2019 17:33 CEST | Update | - |
| article html file updated | 4 May 2019 16:56 CEST | Update | - |
| article html file updated | 3 January 2017 12:01 CET | Original file | - |
| article xml uploaded. | 3 January 2017 12:00 CET | Update | https://www.mdpi.com/2412-3811/2/1/1/xml |
| article pdf uploaded. | 3 January 2017 12:00 CET | Version of Record | https://www.mdpi.com/2412-3811/2/1/1/pdf |
