| article html file updated | 19 August 2015 13:19 CEST | Update | https://www.mdpi.com/1424-8220/13/12/17067 |
| article html file updated | 14 January 2014 09:00 CET | Original file | N/A |
| article xml file uploaded | 14 January 2014 09:00 CET | Original file | https://www.mdpi.com/1424-8220/13/12/17067/xml |
| article pdf uploaded. | 13 December 2013 15:49 CET | Updated version of record | https://www.mdpi.com/1424-8220/13/12/17067/pdf |
| article pdf uploaded. | 12 December 2013 09:33 CET | Version of Record | https://www.mdpi.com/1424-8220/13/12/17067/pdf-vor |
