| article html file updated | 6 February 2020 12:20 CET | Update | https://www.mdpi.com/1996-1944/7/9/6796 |
| article html file updated | 7 May 2019 08:07 CEST | Update | N/A |
| article html file updated | 22 March 2019 01:08 CET | Update | N/A |
| article html file updated | 20 August 2015 20:01 CEST | Update | N/A |
| article html file updated | 21 October 2014 06:30 CEST | Original file | N/A |
| article xml file uploaded | 21 October 2014 06:30 CEST | Original file | https://www.mdpi.com/1996-1944/7/9/6796/xml |
| article pdf uploaded. | 19 September 2014 11:13 CEST | Version of Record | https://www.mdpi.com/1996-1944/7/9/6796/pdf |
