| article html file updated | 8 February 2020 07:39 CET | Update | https://www.mdpi.com/1424-8220/17/6/1309 |
| article html file updated | 25 September 2019 05:12 CEST | Update | - |
| article html file updated | 3 May 2019 18:38 CEST | Update | - |
| article html file updated | 30 June 2017 11:41 CEST | Update | - |
| article html file updated | 7 June 2017 11:26 CEST | Original file | - |
| article xml uploaded. | 7 June 2017 11:25 CEST | Update | https://www.mdpi.com/1424-8220/17/6/1309/xml |
| article pdf uploaded. | 7 June 2017 11:25 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/6/1309/pdf |
