| article html file updated | 17 June 2015 10:06 CEST | Update | https://www.mdpi.com/1424-8220/13/6/7492 |
| article html file updated | 19 July 2013 09:55 CEST | Original file | N/A |
| article xml file uploaded | 19 July 2013 09:55 CEST | Original file | https://www.mdpi.com/1424-8220/13/6/7492/xml |
| article pdf uploaded. | 7 June 2013 13:47 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/6/7492/pdf |
