| article html file updated | 7 February 2020 11:24 CET | Update | https://www.mdpi.com/1996-1944/9/7/551 |
| article html file updated | 5 May 2019 10:42 CEST | Update | - |
| article html file updated | 27 March 2019 09:43 CET | Update | - |
| article html file updated | 29 July 2016 10:44 CEST | Update | - |
| article html file updated | 8 July 2016 11:33 CEST | Original file | - |
| article xml uploaded. | 8 July 2016 11:32 CEST | Original file | https://www.mdpi.com/1996-1944/9/7/551/xml |
| article pdf uploaded. | 8 July 2016 11:32 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/7/551/pdf |
