| article html file updated | 6 February 2020 11:57 CET | Update | https://www.mdpi.com/1996-1944/7/9/6291 |
| article html file updated | 7 May 2019 08:48 CEST | Update | N/A |
| article html file updated | 22 March 2019 00:14 CET | Update | N/A |
| article html file updated | 20 August 2015 17:15 CEST | Update | N/A |
| article html file updated | 21 October 2014 06:29 CEST | Original file | N/A |
| article xml file uploaded | 21 October 2014 06:29 CEST | Original file | https://www.mdpi.com/1996-1944/7/9/6291/xml |
| article pdf uploaded. | 3 September 2014 08:13 CEST | Version of Record | https://www.mdpi.com/1996-1944/7/9/6291/pdf |
