| article html file updated | 19 August 2015 17:40 CEST | Update | https://www.mdpi.com/1424-8220/14/1/1691 |
| article html file updated | 20 February 2014 09:43 CET | Original file | N/A |
| article xml file uploaded | 20 February 2014 09:43 CET | Original file | https://www.mdpi.com/1424-8220/14/1/1691/xml |
| article pdf uploaded. | 17 January 2014 11:34 CET | Version of Record | https://www.mdpi.com/1424-8220/14/1/1691/pdf |
