| article html file updated | 7 February 2020 09:40 CET | Update | https://www.mdpi.com/1424-8220/16/6/814 |
| article html file updated | 5 May 2019 13:53 CEST | Update | - |
| article html file updated | 27 March 2019 06:30 CET | Update | - |
| article html file updated | 29 June 2016 10:27 CEST | Update | - |
| article html file updated | 2 June 2016 15:12 CEST | Original file | - |
| article xml uploaded. | 2 June 2016 15:11 CEST | Update | https://www.mdpi.com/1424-8220/16/6/814/xml |
| article pdf uploaded. | 2 June 2016 15:11 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/6/814/pdf |
