| article html file updated | 7 February 2020 18:24 CET | Update | https://www.mdpi.com/1996-1944/9/11/937 |
| article html file updated | 4 May 2019 21:46 CEST | Update | - |
| article html file updated | 30 November 2016 06:04 CET | Update | - |
| article html file updated | 22 November 2016 12:30 CET | Original file | - |
| article xml uploaded. | 22 November 2016 12:28 CET | Update | https://www.mdpi.com/1996-1944/9/11/937/xml |
| article xml uploaded. | 22 November 2016 12:28 CET | Original file | - |
| article pdf uploaded. | 22 November 2016 12:28 CET | Version of Record | https://www.mdpi.com/1996-1944/9/11/937/pdf |
