| article html file updated | 17 June 2015 05:47 CEST | Update | https://www.mdpi.com/1424-8220/13/2/1539 |
| article html file updated | 30 October 2013 09:35 CET | Update | N/A |
| article xml file uploaded | 30 October 2013 09:35 CET | Update | https://www.mdpi.com/1424-8220/13/2/1539/xml |
| article html file updated | 23 April 2013 15:10 CEST | Update | N/A |
| article xml file uploaded | 23 April 2013 15:10 CEST | Update | N/A |
| article html file updated | 25 March 2013 12:02 CET | Original file | N/A |
| article xml file uploaded | 25 March 2013 12:02 CET | Original file | N/A |
| article pdf uploaded. | 24 January 2013 14:43 CET | Version of Record | https://www.mdpi.com/1424-8220/13/2/1539/pdf |
