| article html file updated | 17 June 2015 09:52 CEST | Update | https://www.mdpi.com/1424-8220/13/6/7224 |
| article html file updated | 19 July 2013 09:53 CEST | Original file | N/A |
| article xml file uploaded | 19 July 2013 09:53 CEST | Original file | https://www.mdpi.com/1424-8220/13/6/7224/xml |
| article pdf uploaded. | 31 May 2013 12:07 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/6/7224/pdf |
