| article html file updated | 11 February 2020 11:05 CET | Update | https://www.mdpi.com/2411-5134/4/1/6 |
| article html file updated | 13 October 2019 20:16 CEST | Update | - |
| article html file updated | 27 April 2019 02:18 CEST | Update | - |
| article html file updated | 12 April 2019 22:15 CEST | Update | - |
| article html file updated | 3 April 2019 08:26 CEST | Update | - |
| article html file updated | 23 January 2019 11:44 CET | Original file | - |
| article pdf uploaded. | 23 January 2019 11:41 CET | Version of Record | https://www.mdpi.com/2411-5134/4/1/6/pdf |
| article xml uploaded. | 23 January 2019 11:41 CET | Update | https://www.mdpi.com/2411-5134/4/1/6/xml |
| article xml file uploaded | 23 January 2019 11:41 CET | Original file | - |
