| article html file updated | 9 February 2020 11:02 CET | Update | https://www.mdpi.com/1424-8220/18/4/957 |
| article html file updated | 1 October 2019 22:11 CEST | Update | - |
| article html file updated | 1 May 2019 09:10 CEST | Update | - |
| article html file updated | 17 April 2019 09:05 CEST | Update | - |
| article html file updated | 29 March 2019 09:19 CET | Update | - |
| article html file updated | 7 May 2018 03:58 CEST | Update | - |
| article html file updated | 23 March 2018 17:23 CET | Original file | - |
| article xml uploaded. | 23 March 2018 17:22 CET | Update | https://www.mdpi.com/1424-8220/18/4/957/xml |
| article pdf uploaded. | 23 March 2018 17:22 CET | Version of Record | https://www.mdpi.com/1424-8220/18/4/957/pdf |
