| article html file updated | 29 August 2025 20:30 CEST | Update | https://www.mdpi.com/2218-1989/2/4/872 |
| article html file updated | 15 July 2022 22:02 CEST | Update | N/A |
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| article xml file uploaded | 7 January 2014 12:26 CET | Update | https://www.mdpi.com/2218-1989/2/4/872/xml |
| article html file updated | 30 August 2013 09:15 CEST | Update | N/A |
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| article html file updated | 7 February 2013 16:34 CET | Update | N/A |
| article html file updated | 24 January 2013 07:46 CET | Original file | N/A |
