| article html file updated | 16 June 2015 05:09 CEST | Update | https://www.mdpi.com/1424-8220/8/12/7690 |
| article html file updated | 1 October 2013 09:12 CEST | Original file | N/A |
| article xml file uploaded | 1 October 2013 09:12 CEST | Original file | https://www.mdpi.com/1424-8220/8/12/7690/xml |
