| article html file updated | 16 June 2015 20:12 CEST | Update | https://www.mdpi.com/2073-4425/2/4/998 |
| article html file updated | 18 March 2014 09:36 CET | Update | N/A |
| article xml file uploaded | 18 March 2014 09:36 CET | Original file | https://www.mdpi.com/2073-4425/2/4/998/xml |
| article html file updated | 6 February 2013 23:39 CET | Update | N/A |
| article html file updated | 6 February 2013 04:17 CET | Update | N/A |
| article html file updated | 29 January 2013 00:43 CET | Update | N/A |
| article html file updated | 26 January 2013 06:28 CET | Update | N/A |
| article html file updated | 23 January 2013 02:59 CET | Original file | N/A |
