| article html file updated | 17 June 2015 12:49 CEST | Update | https://www.mdpi.com/1424-8220/13/9/11553 |
| article html file updated | 4 November 2013 10:19 CET | Original file | N/A |
| article xml file uploaded | 4 November 2013 10:19 CET | Original file | https://www.mdpi.com/1424-8220/13/9/11553/xml |
| article pdf uploaded. | 3 September 2013 17:18 CEST | Updated version of record | https://www.mdpi.com/1424-8220/13/9/11553/pdf |
| article pdf uploaded. | 2 September 2013 13:38 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/9/11553/pdf-vor |
