| article html file updated | 16 June 2015 15:46 CEST | Update | https://www.mdpi.com/1424-8247/4/5/713 |
| article html file updated | 13 June 2014 10:39 CEST | Update | - |
| article xml file uploaded | 13 June 2014 10:39 CEST | Original file | https://www.mdpi.com/1424-8247/4/5/713/xml |
| article html file updated | 6 February 2013 20:51 CET | Update | - |
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| article html file updated | 28 January 2013 22:10 CET | Update | - |
| article html file updated | 26 January 2013 02:18 CET | Update | - |
| article html file updated | 22 January 2013 15:09 CET | Original file | - |
