| article html file updated | 16 June 2015 11:22 CEST | Update | https://www.mdpi.com/1424-8220/10/8/7681 |
| article html file updated | 14 August 2014 12:05 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:05 CEST | Update | https://www.mdpi.com/1424-8220/10/8/7681/xml |
| article html file updated | 28 April 2014 11:17 CEST | Update | - |
| article xml file uploaded | 28 April 2014 11:17 CEST | Original file | - |
| article html file updated | 6 February 2013 18:22 CET | Update | - |
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| article html file updated | 28 January 2013 19:54 CET | Update | - |
| article html file updated | 25 January 2013 23:11 CET | Update | - |
| article html file updated | 22 January 2013 03:02 CET | Update | - |
| article html file updated | 18 January 2013 09:03 CET | Original file | - |
