| article html file updated | 29 August 2025 20:31 CEST | Update | https://www.mdpi.com/2218-273X/2/4/608 |
| article html file updated | 15 July 2022 22:04 CEST | Update | N/A |
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| article xml file uploaded | 12 May 2014 15:31 CEST | Original file | https://www.mdpi.com/2218-273X/2/4/608/xml |
| article html file updated | 7 February 2013 17:10 CET | Update | N/A |
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