| article html file updated | 17 June 2015 08:21 CEST | Update | https://www.mdpi.com/1424-8220/13/4/4811 |
| article html file updated | 5 June 2013 11:50 CEST | Original file | N/A |
| article xml file uploaded | 5 June 2013 11:49 CEST | Original file | https://www.mdpi.com/1424-8220/13/4/4811/xml |
| article pdf uploaded. | 11 April 2013 11:43 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/4/4811/pdf |
