| article html file updated | 17 June 2015 09:49 CEST | Update | https://www.mdpi.com/1424-8220/13/6/7140 |
| article html file updated | 19 July 2013 09:52 CEST | Original file | N/A |
| article xml file uploaded | 19 July 2013 09:52 CEST | Original file | https://www.mdpi.com/1424-8220/13/6/7140/xml |
| article pdf uploaded. | 3 June 2013 15:58 CEST | Updated version of record | https://www.mdpi.com/1424-8220/13/6/7140/pdf |
| article pdf uploaded. | 31 May 2013 14:20 CEST | Updated version of record | https://www.mdpi.com/1424-8220/13/6/7140/pdf-vor |
| article pdf uploaded. | 30 May 2013 12:11 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/6/7140/pdf-vor |
