| article html file updated | 19 August 2015 16:04 CEST | Update | https://www.mdpi.com/1424-8220/14/1/549 |
| article html file updated | 20 February 2014 09:08 CET | Original file | - |
| article xml file uploaded | 20 February 2014 09:07 CET | Original file | https://www.mdpi.com/1424-8220/14/1/549/xml |
| article pdf uploaded. | 31 December 2013 11:00 CET | Version of Record | https://www.mdpi.com/1424-8220/14/1/549/pdf |
