| article html file updated | 7 February 2020 15:20 CET | Update | https://www.mdpi.com/1996-1944/9/9/786 |
| article html file updated | 5 May 2019 03:29 CEST | Update | - |
| article html file updated | 27 September 2016 08:32 CEST | Update | - |
| article html file updated | 21 September 2016 12:34 CEST | Original file | - |
| article xml uploaded. | 21 September 2016 12:32 CEST | Update | https://www.mdpi.com/1996-1944/9/9/786/xml |
| article xml uploaded. | 21 September 2016 12:32 CEST | Original file | - |
| article pdf uploaded. | 21 September 2016 12:32 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/9/786/pdf |
