| article html file updated | 7 February 2020 18:11 CET | Update | https://www.mdpi.com/1996-1944/9/11/931 |
| article html file updated | 4 May 2019 22:12 CEST | Update | - |
| article html file updated | 30 November 2016 06:00 CET | Update | - |
| article html file updated | 17 November 2016 12:36 CET | Original file | - |
| article xml uploaded. | 17 November 2016 12:35 CET | Update | https://www.mdpi.com/1996-1944/9/11/931/xml |
| article xml uploaded. | 17 November 2016 12:35 CET | Original file | - |
| article pdf uploaded. | 17 November 2016 12:35 CET | Version of Record | https://www.mdpi.com/1996-1944/9/11/931/pdf |
