| article html file updated | 5 February 2020 15:20 CET | Update | https://www.mdpi.com/1424-8220/10/9/7947 |
| article html file updated | 8 January 2020 11:42 CET | Update | - |
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| article xml file uploaded | 28 April 2014 11:19 CEST | Original file | https://www.mdpi.com/1424-8220/10/9/7947/xml |
| article html file updated | 6 February 2013 18:26 CET | Update | - |
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