| article html file updated | 19 August 2015 12:59 CEST | Update | https://www.mdpi.com/1424-8220/13/12/16950 |
| article html file updated | 14 January 2014 09:00 CET | Original file | - |
| article xml file uploaded | 14 January 2014 09:00 CET | Original file | https://www.mdpi.com/1424-8220/13/12/16950/xml |
| article pdf uploaded. | 10 December 2013 17:06 CET | Updated version of record | https://www.mdpi.com/1424-8220/13/12/16950/pdf |
| article pdf uploaded. | 9 December 2013 12:23 CET | Version of Record | https://www.mdpi.com/1424-8220/13/12/16950/pdf-vor |
