| article html file updated | 9 February 2020 10:58 CET | Update | https://www.mdpi.com/1424-8220/18/4/951 |
| article html file updated | 1 October 2019 21:42 CEST | Update | - |
| article html file updated | 1 May 2019 09:20 CEST | Update | - |
| article html file updated | 17 April 2019 09:15 CEST | Update | - |
| article html file updated | 29 March 2019 09:07 CET | Update | - |
| article html file updated | 7 May 2018 03:57 CEST | Update | - |
| article html file updated | 23 March 2018 09:25 CET | Original file | - |
| article xml uploaded. | 23 March 2018 09:23 CET | Original file | https://www.mdpi.com/1424-8220/18/4/951/xml |
| article pdf uploaded. | 23 March 2018 09:23 CET | Version of Record | https://www.mdpi.com/1424-8220/18/4/951/pdf |
