| article html file updated | 7 February 2020 10:02 CET | Update | https://www.mdpi.com/1424-8220/16/6/859 |
| article html file updated | 5 May 2019 13:12 CEST | Update | - |
| article html file updated | 27 March 2019 07:14 CET | Update | - |
| article html file updated | 29 June 2016 10:41 CEST | Update | - |
| article html file updated | 10 June 2016 12:41 CEST | Original file | - |
| article xml uploaded. | 10 June 2016 12:40 CEST | Update | https://www.mdpi.com/1424-8220/16/6/859/xml |
| article pdf uploaded. | 10 June 2016 12:40 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/6/859/pdf |
