| article html file updated | 17 June 2015 13:40 CEST | Update | https://www.mdpi.com/2075-4701/3/4/319 |
| article html file updated | 24 September 2014 10:06 CEST | Original file | - |
| article xml file uploaded | 24 September 2014 10:06 CEST | Original file | https://www.mdpi.com/2075-4701/3/4/319/xml |
| article pdf uploaded. | 9 October 2013 09:59 CEST | Version of Record | https://www.mdpi.com/2075-4701/3/4/319/pdf |
