| article html file updated | 17 June 2015 05:46 CEST | Update | https://www.mdpi.com/1424-8220/13/2/1490 |
| article html file updated | 30 October 2013 09:34 CET | Update | - |
| article xml file uploaded | 30 October 2013 09:33 CET | Update | https://www.mdpi.com/1424-8220/13/2/1490/xml |
| article html file updated | 23 April 2013 15:10 CEST | Update | - |
| article xml file uploaded | 23 April 2013 15:09 CEST | Update | - |
| article html file updated | 25 March 2013 12:01 CET | Original file | - |
| article xml file uploaded | 25 March 2013 12:01 CET | Original file | - |
| article pdf uploaded. | 24 January 2013 14:22 CET | Version of Record | https://www.mdpi.com/1424-8220/13/2/1490/pdf |
