| article html file updated | 9 February 2020 10:46 CET | Update | https://www.mdpi.com/1424-8220/18/4/937 |
| article html file updated | 1 October 2019 20:41 CEST | Update | - |
| article html file updated | 1 May 2019 09:46 CEST | Update | - |
| article html file updated | 17 April 2019 09:39 CEST | Update | - |
| article html file updated | 29 March 2019 08:39 CET | Update | - |
| article html file updated | 7 May 2018 03:53 CEST | Update | - |
| article html file updated | 22 March 2018 08:41 CET | Original file | - |
| article xml uploaded. | 22 March 2018 08:40 CET | Update | https://www.mdpi.com/1424-8220/18/4/937/xml |
| article pdf uploaded. | 22 March 2018 08:40 CET | Version of Record | https://www.mdpi.com/1424-8220/18/4/937/pdf |
