| article html file updated | 17 June 2015 12:53 CEST | Update | https://www.mdpi.com/1424-8220/13/9/11728 |
| article html file updated | 4 November 2013 10:21 CET | Original file | N/A |
| article xml file uploaded | 4 November 2013 10:21 CET | Original file | https://www.mdpi.com/1424-8220/13/9/11728/xml |
| article pdf uploaded. | 5 September 2013 14:16 CEST | Updated version of record | https://www.mdpi.com/1424-8220/13/9/11728/pdf |
| article pdf uploaded. | 4 September 2013 12:17 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/9/11728/pdf-vor |
