| article html file updated | 7 February 2020 09:47 CET | Update | https://www.mdpi.com/1424-8220/16/6/826 |
| article html file updated | 5 May 2019 13:40 CEST | Update | - |
| article html file updated | 27 March 2019 06:46 CET | Update | - |
| article html file updated | 29 June 2016 10:30 CEST | Update | - |
| article html file updated | 4 June 2016 12:42 CEST | Original file | - |
| article xml uploaded. | 4 June 2016 12:41 CEST | Update | https://www.mdpi.com/1424-8220/16/6/826/xml |
| article pdf uploaded. | 4 June 2016 12:41 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/6/826/pdf |
