| article html file updated | 17 June 2015 06:34 CEST | Update | https://www.mdpi.com/1424-8220/13/2/2399 |
| article html file updated | 30 October 2013 09:58 CET | Update | - |
| article xml file uploaded | 30 October 2013 09:57 CET | Update | https://www.mdpi.com/1424-8220/13/2/2399/xml |
| article html file updated | 23 April 2013 15:26 CEST | Update | - |
| article xml file uploaded | 23 April 2013 15:26 CEST | Update | - |
| article html file updated | 25 March 2013 12:41 CET | Original file | - |
| article xml file uploaded | 25 March 2013 12:41 CET | Original file | - |
| article pdf uploaded. | 21 February 2013 15:12 CET | Updated version of record | https://www.mdpi.com/1424-8220/13/2/2399/pdf |
| article pdf uploaded. | 11 February 2013 09:00 CET | Version of Record | https://www.mdpi.com/1424-8220/13/2/2399/pdf-vor |
