| article html file updated | 19 August 2015 14:00 CEST | Update | https://www.mdpi.com/1424-8220/13/12/17501 |
| article html file updated | 14 January 2014 09:03 CET | Original file | N/A |
| article xml file uploaded | 14 January 2014 09:03 CET | Original file | https://www.mdpi.com/1424-8220/13/12/17501/xml |
| article pdf uploaded. | 17 December 2013 10:50 CET | Version of Record | https://www.mdpi.com/1424-8220/13/12/17501/pdf |
