| article html file updated | 7 February 2020 17:55 CET | Update | https://www.mdpi.com/1996-1944/9/11/920 |
| article html file updated | 4 May 2019 22:43 CEST | Update | - |
| article html file updated | 30 November 2016 05:56 CET | Update | - |
| article html file updated | 12 November 2016 04:25 CET | Original file | - |
| article xml uploaded. | 12 November 2016 04:24 CET | Update | https://www.mdpi.com/1996-1944/9/11/920/xml |
| article xml uploaded. | 12 November 2016 04:24 CET | Original file | - |
| article pdf uploaded. | 12 November 2016 04:24 CET | Version of Record | https://www.mdpi.com/1996-1944/9/11/920/pdf |
