| article html file updated | 17 June 2015 13:17 CEST | Update | https://www.mdpi.com/1424-8220/13/9/12536 |
| article html file updated | 4 November 2013 10:35 CET | Original file | N/A |
| article xml file uploaded | 4 November 2013 10:34 CET | Original file | https://www.mdpi.com/1424-8220/13/9/12536/xml |
| article pdf uploaded. | 17 September 2013 11:45 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/9/12536/pdf |
