| article html file updated | 16 June 2015 18:43 CEST | Update | https://www.mdpi.com/2073-4425/2/4/661 |
| article html file updated | 18 March 2014 09:34 CET | Update | N/A |
| article xml file uploaded | 18 March 2014 09:34 CET | Original file | https://www.mdpi.com/2073-4425/2/4/661/xml |
| article html file updated | 6 February 2013 22:48 CET | Update | N/A |
| article html file updated | 6 February 2013 02:35 CET | Update | N/A |
| article html file updated | 28 January 2013 23:55 CET | Update | N/A |
| article html file updated | 26 January 2013 05:16 CET | Update | N/A |
| article html file updated | 22 January 2013 22:56 CET | Original file | N/A |
