| article html file updated | 17 June 2015 09:25 CEST | Update | https://www.mdpi.com/1424-8220/13/5/6687 |
| article html file updated | 24 June 2013 12:09 CEST | Original file | - |
| article xml file uploaded | 24 June 2013 12:09 CEST | Original file | https://www.mdpi.com/1424-8220/13/5/6687/xml |
| article pdf uploaded. | 17 May 2013 16:03 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/5/6687/pdf |
