| article html file updated | 16 June 2015 20:52 CEST | Update | https://www.mdpi.com/1424-8220/12/1/215 |
| article html file updated | 1 November 2013 13:56 CET | Update | - |
| article xml file uploaded | 1 November 2013 13:56 CET | Update | https://www.mdpi.com/1424-8220/12/1/215/xml |
| article html file updated | 1 November 2013 11:46 CET | Update | - |
| article xml file uploaded | 1 November 2013 11:46 CET | Update | - |
| article html file updated | 31 October 2013 10:26 CET | Update | - |
| article xml file uploaded | 31 October 2013 10:26 CET | Original file | - |
| article html file updated | 7 February 2013 09:29 CET | Update | - |
| article html file updated | 7 February 2013 00:04 CET | Update | - |
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| article html file updated | 29 January 2013 01:07 CET | Update | - |
| article html file updated | 26 January 2013 07:12 CET | Update | - |
| article html file updated | 23 January 2013 06:38 CET | Original file | - |
