| article html file updated | 9 February 2020 10:57 CET | Update | https://www.mdpi.com/1424-8220/18/4/950 |
| article html file updated | 1 October 2019 21:37 CEST | Update | - |
| article html file updated | 1 May 2019 09:22 CEST | Update | - |
| article html file updated | 17 April 2019 09:17 CEST | Update | - |
| article html file updated | 29 March 2019 09:04 CET | Update | - |
| article html file updated | 7 May 2018 03:56 CEST | Update | - |
| article html file updated | 23 March 2018 08:37 CET | Original file | - |
| article xml uploaded. | 23 March 2018 08:36 CET | Update | https://www.mdpi.com/1424-8220/18/4/950/xml |
| article pdf uploaded. | 23 March 2018 08:35 CET | Version of Record | https://www.mdpi.com/1424-8220/18/4/950/pdf |
