| article html file updated | 17 June 2015 12:59 CEST | Update | https://www.mdpi.com/1424-8220/13/9/11899 |
| article html file updated | 4 November 2013 10:24 CET | Original file | - |
| article xml file uploaded | 4 November 2013 10:24 CET | Original file | https://www.mdpi.com/1424-8220/13/9/11899/xml |
| article pdf uploaded. | 6 September 2013 12:07 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/9/11899/pdf |
