| article html file updated | 8 October 2020 16:56 CEST | Update | https://www.mdpi.com/2313-7673/5/1/6 |
| article html file updated | 1 April 2020 15:44 CEST | Update | - |
| article html file updated | 25 March 2020 07:29 CET | Original file | - |
| article xml uploaded. | 25 March 2020 07:28 CET | Update | https://www.mdpi.com/2313-7673/5/1/6/xml |
| article pdf uploaded. | 7 February 2020 15:36 CET | Version of Record | https://www.mdpi.com/2313-7673/5/1/6/pdf |
| article xml file uploaded | 7 February 2020 15:36 CET | Original file | - |
