| article html file updated | 20 August 2015 19:25 CEST | Update | https://www.mdpi.com/2073-4352/4/3/417 |
| article html file updated | 26 March 2015 09:55 CET | Original file | N/A |
| article xml file uploaded | 26 March 2015 09:55 CET | Original file | https://www.mdpi.com/2073-4352/4/3/417/xml |
| article pdf uploaded. | 17 September 2014 12:02 CEST | Version of Record | https://www.mdpi.com/2073-4352/4/3/417/pdf |
