| article html file updated | 17 June 2015 13:51 CEST | Update | https://www.mdpi.com/2220-9964/2/4/959 |
| article html file updated | 4 May 2015 05:32 CEST | Original file | - |
| article xml file uploaded | 4 May 2015 05:32 CEST | Original file | https://www.mdpi.com/2220-9964/2/4/959/xml |
| article pdf uploaded. | 14 October 2013 12:55 CEST | Version of Record | https://www.mdpi.com/2220-9964/2/4/959/pdf |
