| article html file updated | 16 June 2015 04:09 CEST | Update | https://www.mdpi.com/1424-8220/8/4/2161 |
| article html file updated | 5 July 2013 17:48 CEST | Update | N/A |
| article xml file uploaded | 5 July 2013 17:48 CEST | Update | https://www.mdpi.com/1424-8220/8/4/2161/xml |
| article html file updated | 6 June 2013 10:41 CEST | Original file | N/A |
| article xml file uploaded | 6 June 2013 10:41 CEST | Original file | N/A |
