| article html file updated | 17 June 2015 08:02 CEST | Update | https://www.mdpi.com/1424-8220/13/4/4327 |
| article html file updated | 5 June 2013 11:36 CEST | Original file | - |
| article xml file uploaded | 5 June 2013 11:35 CEST | Original file | https://www.mdpi.com/1424-8220/13/4/4327/xml |
| article pdf uploaded. | 28 March 2013 12:18 CET | Version of Record | https://www.mdpi.com/1424-8220/13/4/4327/pdf |
