| article html file updated | 17 June 2015 09:52 CEST | Update | https://www.mdpi.com/1424-8220/13/6/7170 |
| article html file updated | 19 July 2013 09:52 CEST | Original file | - |
| article xml file uploaded | 19 July 2013 09:52 CEST | Original file | https://www.mdpi.com/1424-8220/13/6/7170/xml |
| article pdf uploaded. | 4 June 2013 15:03 CEST | Updated version of record | https://www.mdpi.com/1424-8220/13/6/7170/pdf |
| article pdf uploaded. | 31 May 2013 11:45 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/6/7170/pdf-vor |
