| article html file updated | 17 June 2015 09:42 CEST | Update | https://www.mdpi.com/1424-8220/13/6/6957 |
| article html file updated | 19 July 2013 09:51 CEST | Original file | N/A |
| article xml file uploaded | 19 July 2013 09:51 CEST | Original file | https://www.mdpi.com/1424-8220/13/6/6957/xml |
| article pdf uploaded. | 27 May 2013 11:28 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/6/6957/pdf |
