| article html file updated | 16 June 2015 04:57 CEST | Update | https://www.mdpi.com/1660-3397/6/4/550 |
| article html file updated | 5 March 2015 11:20 CET | Update | N/A |
| article xml file uploaded | 5 March 2015 11:20 CET | Original file | https://www.mdpi.com/1660-3397/6/4/550/xml |
| article html file updated | 6 February 2013 14:10 CET | Update | N/A |
| article html file updated | 5 February 2013 17:58 CET | Update | N/A |
| article html file updated | 28 January 2013 16:02 CET | Update | N/A |
| article html file updated | 25 January 2013 17:38 CET | Update | N/A |
| article html file updated | 21 January 2013 10:27 CET | Update | N/A |
| article html file updated | 18 January 2013 19:51 CET | Update | N/A |
| article html file updated | 17 January 2013 18:25 CET | Original file | N/A |
