| article html file updated | 19 August 2015 20:45 CEST | Update | https://www.mdpi.com/1424-8220/14/2/3308 |
| article html file updated | 14 March 2014 10:59 CET | Original file | - |
| article xml file uploaded | 14 March 2014 10:59 CET | Original file | https://www.mdpi.com/1424-8220/14/2/3308/xml |
| article pdf uploaded. | 19 February 2014 09:13 CET | Version of Record | https://www.mdpi.com/1424-8220/14/2/3308/pdf |
