| article html file updated | 7 February 2020 10:12 CET | Update | https://www.mdpi.com/1424-8220/16/6/878 |
| article html file updated | 5 May 2019 12:53 CEST | Update | - |
| article html file updated | 27 March 2019 07:33 CET | Update | - |
| article html file updated | 29 June 2016 10:51 CEST | Update | - |
| article html file updated | 15 June 2016 10:34 CEST | Original file | - |
| article xml uploaded. | 15 June 2016 10:32 CEST | Update | https://www.mdpi.com/1424-8220/16/6/878/xml |
| article pdf uploaded. | 15 June 2016 10:32 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/6/878/pdf |
