| article html file updated | 17 June 2015 07:05 CEST | Update | https://www.mdpi.com/1424-8220/13/3/2997 |
| article html file updated | 21 May 2013 09:36 CEST | Update | - |
| article xml file uploaded | 21 May 2013 09:36 CEST | Update | https://www.mdpi.com/1424-8220/13/3/2997/xml |
| article html file updated | 23 April 2013 13:58 CEST | Update | - |
| article xml file uploaded | 23 April 2013 13:57 CEST | Update | - |
| article html file updated | 23 April 2013 11:52 CEST | Original file | - |
| article xml file uploaded | 23 April 2013 11:52 CEST | Original file | - |
| article pdf uploaded. | 1 March 2013 15:42 CET | Version of Record | https://www.mdpi.com/1424-8220/13/3/2997/pdf |
