| article html file updated | 24 December 2025 13:15 CET | Update | https://www.mdpi.com/1660-4601/8/2/554 |
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| article html file updated | 14 August 2014 11:22 CEST | Update | N/A |
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| article html file updated | 22 January 2013 10:55 CET | Original file | N/A |
