| article html file updated | 16 June 2015 17:31 CEST | Update | https://www.mdpi.com/2073-4425/2/3/502 |
| article html file updated | 18 March 2014 09:33 CET | Update | - |
| article xml file uploaded | 18 March 2014 09:33 CET | Original file | https://www.mdpi.com/2073-4425/2/3/502/xml |
| article html file updated | 6 February 2013 22:02 CET | Update | - |
| article html file updated | 6 February 2013 01:51 CET | Update | - |
| article html file updated | 28 January 2013 23:15 CET | Update | - |
| article html file updated | 26 January 2013 04:05 CET | Update | - |
| article html file updated | 22 January 2013 19:51 CET | Original file | - |
