| article html file updated | 19 August 2015 19:57 CEST | Update | https://www.mdpi.com/1996-1073/7/2/619 |
| article html file updated | 3 June 2014 12:02 CEST | Original file | N/A |
| article xml file uploaded | 3 June 2014 12:02 CEST | Original file | https://www.mdpi.com/1996-1073/7/2/619/xml |
| article pdf uploaded. | 10 February 2014 13:45 CET | Version of Record | https://www.mdpi.com/1996-1073/7/2/619/pdf |
