| article html file updated | 7 February 2020 10:08 CET | Update | https://www.mdpi.com/1424-8220/16/6/873 |
| article html file updated | 5 May 2019 13:00 CEST | Update | - |
| article html file updated | 27 March 2019 07:26 CET | Update | - |
| article html file updated | 29 June 2016 10:48 CEST | Update | - |
| article html file updated | 14 June 2016 11:52 CEST | Original file | - |
| article xml uploaded. | 14 June 2016 11:51 CEST | Original file | https://www.mdpi.com/1424-8220/16/6/873/xml |
| article pdf uploaded. | 14 June 2016 11:51 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/6/873/pdf |
