| article html file updated | 6 February 2020 11:15 CET | Update | https://www.mdpi.com/1996-1944/7/8/5664 |
| article html file updated | 7 May 2019 10:22 CEST | Update | - |
| article html file updated | 21 March 2019 22:30 CET | Update | - |
| article html file updated | 20 August 2015 14:36 CEST | Update | - |
| article html file updated | 5 September 2014 12:23 CEST | Original file | - |
| article xml file uploaded | 5 September 2014 12:23 CEST | Original file | https://www.mdpi.com/1996-1944/7/8/5664/xml |
| article pdf uploaded. | 6 August 2014 13:55 CEST | Version of Record | https://www.mdpi.com/1996-1944/7/8/5664/pdf |
