| article html file updated | 7 February 2020 11:02 CET | Update | https://www.mdpi.com/1996-1944/9/7/536 |
| article html file updated | 5 May 2019 11:20 CEST | Update | - |
| article html file updated | 27 March 2019 09:03 CET | Update | - |
| article html file updated | 29 July 2016 10:37 CEST | Update | - |
| article html file updated | 30 June 2016 11:45 CEST | Original file | - |
| article xml uploaded. | 30 June 2016 11:44 CEST | Original file | https://www.mdpi.com/1996-1944/9/7/536/xml |
| article pdf uploaded. | 30 June 2016 11:44 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/7/536/pdf |
