| article html file updated | 7 February 2020 14:21 CET | Update | https://www.mdpi.com/1424-8220/16/9/1416 |
| article html file updated | 5 May 2019 05:15 CEST | Update | - |
| article html file updated | 27 March 2019 15:51 CET | Update | - |
| article html file updated | 27 September 2016 06:56 CEST | Update | - |
| article html file updated | 2 September 2016 10:41 CEST | Original file | - |
| article xml uploaded. | 2 September 2016 10:39 CEST | Update | https://www.mdpi.com/1424-8220/16/9/1416/xml |
| article xml uploaded. | 2 September 2016 10:39 CEST | Original file | - |
| article pdf uploaded. | 2 September 2016 10:39 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/9/1416/pdf |
