| article html file updated | 16 June 2015 15:15 CEST | Update | https://www.mdpi.com/2071-1050/3/4/605 |
| article html file updated | 14 August 2014 12:06 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:06 CEST | Original file | https://www.mdpi.com/2071-1050/3/4/605/xml |
| article html file updated | 6 February 2013 20:33 CET | Update | - |
| article html file updated | 6 February 2013 00:25 CET | Update | - |
| article html file updated | 28 January 2013 21:52 CET | Update | - |
| article html file updated | 26 January 2013 01:55 CET | Update | - |
| article html file updated | 22 January 2013 13:37 CET | Original file | - |
