| article html file updated | 7 February 2020 17:50 CET | Update | https://www.mdpi.com/1996-1073/9/11/937 |
| article html file updated | 4 May 2019 22:51 CEST | Update | - |
| article html file updated | 30 November 2016 05:58 CET | Update | - |
| article html file updated | 10 November 2016 12:44 CET | Original file | - |
| article xml uploaded. | 10 November 2016 12:43 CET | Update | https://www.mdpi.com/1996-1073/9/11/937/xml |
| article xml uploaded. | 10 November 2016 12:43 CET | Original file | - |
| article pdf uploaded. | 10 November 2016 12:43 CET | Version of Record | https://www.mdpi.com/1996-1073/9/11/937/pdf |
