| article html file updated | 7 February 2020 10:33 CET | Update | https://www.mdpi.com/1424-8220/16/6/940 |
| article html file updated | 5 May 2019 12:12 CEST | Update | - |
| article html file updated | 27 March 2019 08:10 CET | Update | - |
| article html file updated | 29 June 2016 11:14 CEST | Update | - |
| article html file updated | 22 June 2016 15:22 CEST | Original file | - |
| article xml uploaded. | 22 June 2016 15:21 CEST | Update | https://www.mdpi.com/1424-8220/16/6/940/xml |
| article pdf uploaded. | 22 June 2016 15:21 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/6/940/pdf |
