| article html file updated | 15 June 2018 10:20 CEST | Update | https://www.mdpi.com/2218-273X/2/3/331 |
| article html file updated | 17 June 2015 01:13 CEST | Update | - |
| article html file updated | 12 May 2014 15:29 CEST | Update | - |
| article xml file uploaded | 12 May 2014 15:29 CEST | Original file | https://www.mdpi.com/2218-273X/2/3/331/xml |
| article html file updated | 7 February 2013 13:44 CET | Update | - |
| article html file updated | 7 February 2013 04:17 CET | Update | - |
| article html file updated | 6 February 2013 09:04 CET | Update | - |
| article html file updated | 29 January 2013 05:28 CET | Update | - |
| article html file updated | 26 January 2013 14:37 CET | Update | - |
| article html file updated | 23 January 2013 22:31 CET | Original file | - |
