| article html file updated | 16 June 2015 11:20 CEST | Update | https://www.mdpi.com/1424-8220/10/8/7621 |
| article html file updated | 28 April 2014 11:17 CEST | Update | N/A |
| article xml file uploaded | 28 April 2014 11:17 CEST | Original file | https://www.mdpi.com/1424-8220/10/8/7621/xml |
| article html file updated | 6 February 2013 18:22 CET | Update | N/A |
| article html file updated | 5 February 2013 22:22 CET | Update | N/A |
| article html file updated | 28 January 2013 19:54 CET | Update | N/A |
| article html file updated | 25 January 2013 23:10 CET | Update | N/A |
| article html file updated | 22 January 2013 02:59 CET | Update | N/A |
| article html file updated | 18 January 2013 09:00 CET | Original file | N/A |
