| article html file updated | 7 February 2020 11:32 CET | Update | https://www.mdpi.com/1996-1944/9/7/561 |
| article html file updated | 5 May 2019 10:26 CEST | Update | - |
| article html file updated | 27 March 2019 09:59 CET | Update | - |
| article html file updated | 29 July 2016 10:49 CEST | Update | - |
| article html file updated | 12 July 2016 11:31 CEST | Original file | - |
| article xml uploaded. | 12 July 2016 11:30 CEST | Original file | https://www.mdpi.com/1996-1944/9/7/561/xml |
| article pdf uploaded. | 12 July 2016 11:30 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/7/561/pdf |
