| article html file updated | 17 June 2015 08:09 CEST | Update | https://www.mdpi.com/1424-8220/13/4/4514 |
| article html file updated | 5 June 2013 11:43 CEST | Original file | - |
| article xml file uploaded | 5 June 2013 11:42 CEST | Original file | https://www.mdpi.com/1424-8220/13/4/4514/xml |
| article pdf uploaded. | 4 April 2013 10:46 CEST | Updated version of record | https://www.mdpi.com/1424-8220/13/4/4514/pdf |
| article pdf uploaded. | 3 April 2013 09:53 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/4/4514/pdf-vor |
