| article html file updated | 7 February 2020 11:05 CET | Update | https://www.mdpi.com/1996-1944/9/7/537 |
| article html file updated | 5 May 2019 11:15 CEST | Update | - |
| article html file updated | 27 March 2019 09:09 CET | Update | - |
| article html file updated | 29 July 2016 10:37 CEST | Update | - |
| article html file updated | 30 June 2016 14:00 CEST | Original file | - |
| article xml uploaded. | 30 June 2016 13:59 CEST | Original file | https://www.mdpi.com/1996-1944/9/7/537/xml |
| article pdf uploaded. | 30 June 2016 13:59 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/7/537/pdf |
