| article html file updated | 29 August 2025 20:30 CEST | Update | https://www.mdpi.com/2218-1989/2/4/1004 |
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| article xml file uploaded | 7 January 2014 12:27 CET | Update | https://www.mdpi.com/2218-1989/2/4/1004/xml |
| article html file updated | 30 August 2013 09:15 CEST | Update | - |
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