| article html file updated | 7 February 2020 10:08 CET | Update | https://www.mdpi.com/1424-8220/16/6/872 |
| article html file updated | 5 May 2019 13:01 CEST | Update | - |
| article html file updated | 27 March 2019 07:25 CET | Update | - |
| article html file updated | 29 June 2016 10:47 CEST | Update | - |
| article html file updated | 14 June 2016 15:19 CEST | Original file | - |
| article xml uploaded. | 14 June 2016 15:18 CEST | Original file | https://www.mdpi.com/1424-8220/16/6/872/xml |
| article pdf uploaded. | 14 June 2016 15:18 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/6/872/pdf |
