| article html file updated | 17 June 2015 13:23 CEST | Update | https://www.mdpi.com/1424-8220/13/9/12698 |
| article html file updated | 4 November 2013 10:36 CET | Original file | - |
| article xml file uploaded | 4 November 2013 10:36 CET | Original file | https://www.mdpi.com/1424-8220/13/9/12698/xml |
| article pdf uploaded. | 25 September 2013 09:13 CEST | Updated version of record | https://www.mdpi.com/1424-8220/13/9/12698/pdf |
| article pdf uploaded. | 23 September 2013 10:54 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/9/12698/pdf-vor |
