| article html file updated | 19 August 2015 10:40 CEST | Update | https://www.mdpi.com/1424-8220/13/12/15968 |
| article html file updated | 14 January 2014 08:53 CET | Original file | N/A |
| article xml file uploaded | 14 January 2014 08:53 CET | Original file | https://www.mdpi.com/1424-8220/13/12/15968/xml |
| article pdf uploaded. | 25 November 2013 11:32 CET | Version of Record | https://www.mdpi.com/1424-8220/13/12/15968/pdf |
