| article html file updated | 7 February 2020 12:22 CET | Update | https://www.mdpi.com/1996-1944/9/8/621 |
| article html file updated | 5 May 2019 08:55 CEST | Update | - |
| article html file updated | 27 March 2019 11:32 CET | Update | - |
| article html file updated | 26 August 2016 06:51 CEST | Update | - |
| article html file updated | 27 July 2016 10:28 CEST | Original file | - |
| article xml uploaded. | 27 July 2016 10:27 CEST | Update | https://www.mdpi.com/1996-1944/9/8/621/xml |
| article pdf uploaded. | 27 July 2016 10:26 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/8/621/pdf |
