| article html file updated | 17 June 2015 06:14 CEST | Update | https://www.mdpi.com/1424-8220/13/2/2051 |
| article html file updated | 30 October 2013 09:48 CET | Update | - |
| article xml file uploaded | 30 October 2013 09:48 CET | Update | https://www.mdpi.com/1424-8220/13/2/2051/xml |
| article html file updated | 23 April 2013 15:18 CEST | Update | - |
| article xml file uploaded | 23 April 2013 15:17 CEST | Update | - |
| article html file updated | 25 March 2013 12:20 CET | Original file | - |
| article xml file uploaded | 25 March 2013 12:19 CET | Original file | - |
| article pdf uploaded. | 19 February 2013 14:53 CET | Updated version of record | https://www.mdpi.com/1424-8220/13/2/2051/pdf |
| article pdf uploaded. | 5 February 2013 11:51 CET | Version of Record | https://www.mdpi.com/1424-8220/13/2/2051/pdf-vor |
