| article html file updated | 16 June 2015 21:04 CEST | Update | https://www.mdpi.com/1424-8220/12/1/686 |
| article html file updated | 31 October 2013 10:27 CET | Update | - |
| article xml file uploaded | 31 October 2013 10:27 CET | Original file | https://www.mdpi.com/1424-8220/12/1/686/xml |
| article html file updated | 7 February 2013 09:42 CET | Update | - |
| article html file updated | 7 February 2013 00:14 CET | Update | - |
| article html file updated | 6 February 2013 05:30 CET | Update | - |
| article html file updated | 29 January 2013 01:16 CET | Update | - |
| article html file updated | 26 January 2013 07:26 CET | Update | - |
| article html file updated | 23 January 2013 07:29 CET | Original file | - |
