| article html file updated | 7 February 2020 09:57 CET | Update | https://www.mdpi.com/1424-8220/16/6/851 |
| article html file updated | 5 May 2019 13:21 CEST | Update | - |
| article html file updated | 27 March 2019 07:06 CET | Update | - |
| article html file updated | 29 June 2016 10:40 CEST | Update | - |
| article html file updated | 8 June 2016 14:51 CEST | Original file | - |
| article xml uploaded. | 8 June 2016 14:49 CEST | Update | https://www.mdpi.com/1424-8220/16/6/851/xml |
| article pdf uploaded. | 8 June 2016 14:49 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/6/851/pdf |
