| article html file updated | 17 June 2015 10:17 CEST | Update | https://www.mdpi.com/1424-8220/13/6/7756 |
| article html file updated | 19 July 2013 09:57 CEST | Original file | N/A |
| article xml file uploaded | 19 July 2013 09:57 CEST | Original file | https://www.mdpi.com/1424-8220/13/6/7756/xml |
| article pdf uploaded. | 17 June 2013 11:32 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/6/7756/pdf |
