| article html file updated | 7 February 2020 16:50 CET | Update | https://www.mdpi.com/1996-1073/9/10/856 |
| article html file updated | 5 May 2019 00:45 CEST | Update | - |
| article html file updated | 28 October 2016 10:07 CEST | Update | - |
| article html file updated | 22 October 2016 11:08 CEST | Original file | - |
| article xml uploaded. | 22 October 2016 11:07 CEST | Update | https://www.mdpi.com/1996-1073/9/10/856/xml |
| article xml uploaded. | 22 October 2016 11:07 CEST | Original file | - |
| article pdf uploaded. | 22 October 2016 11:07 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/10/856/pdf |
