| article html file updated | 7 February 2020 15:55 CET | Update | https://www.mdpi.com/1996-1944/9/10/813 |
| article html file updated | 5 May 2019 02:26 CEST | Update | N/A |
| article html file updated | 27 October 2016 11:38 CEST | Update | N/A |
| article html file updated | 1 October 2016 11:35 CEST | Original file | N/A |
| article pdf uploaded. | 1 October 2016 10:02 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/10/813/pdf |
