| article html file updated | 19 August 2015 21:23 CEST | Update | https://www.mdpi.com/1424-8220/14/2/3690 |
| article html file updated | 14 March 2014 11:03 CET | Original file | - |
| article xml file uploaded | 14 March 2014 11:02 CET | Original file | https://www.mdpi.com/1424-8220/14/2/3690/xml |
| article pdf uploaded. | 21 February 2014 14:50 CET | Version of Record | https://www.mdpi.com/1424-8220/14/2/3690/pdf |
