| article html file updated | 16 June 2015 18:15 CEST | Update | https://www.mdpi.com/1424-8220/11/9/8685 |
| article supplementary file uploaded. | 22 April 2013 14:07 CEST | - | https://www.mdpi.com/1424-8220/11/9/8685#supplementary |
| Correction published | 22 April 2013 00:00 CEST | Correction | http://www.mdpi.com/1424-8220/13/4/5403 |
| article html file updated | 6 February 2013 22:35 CET | Update | - |
| article html file updated | 6 February 2013 02:21 CET | Update | - |
| article html file updated | 28 January 2013 23:43 CET | Update | - |
| article html file updated | 26 January 2013 04:56 CET | Update | - |
| article html file updated | 22 January 2013 21:56 CET | Original file | - |
