| article html file updated | 7 February 2020 12:05 CET | Update | https://www.mdpi.com/1996-1944/9/7/600 |
| article html file updated | 5 May 2019 09:27 CEST | Update | - |
| article html file updated | 27 March 2019 11:01 CET | Update | - |
| article html file updated | 29 July 2016 11:11 CEST | Update | - |
| article html file updated | 21 July 2016 13:19 CEST | Original file | - |
| article xml uploaded. | 21 July 2016 13:17 CEST | Update | https://www.mdpi.com/1996-1944/9/7/600/xml |
| article pdf uploaded. | 21 July 2016 13:17 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/7/600/pdf |
