| article html file updated | 17 June 2015 10:23 CEST | Update | https://www.mdpi.com/1424-8220/13/6/7902 |
| article html file updated | 19 July 2013 09:58 CEST | Original file | - |
| article xml file uploaded | 19 July 2013 09:58 CEST | Original file | https://www.mdpi.com/1424-8220/13/6/7902/xml |
| article pdf uploaded. | 19 June 2013 11:50 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/6/7902/pdf |
