| article html file updated | 12 August 2026 17:16 CEST | Update | https://www.mdpi.com/2079-6412/2/4/221 |
| article html file updated | 5 February 2020 22:50 CET | Update | N/A |
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| article xml file uploaded | 5 March 2015 11:19 CET | Original file | https://www.mdpi.com/2079-6412/2/4/221/xml |
| article html file updated | 7 February 2013 16:33 CET | Update | N/A |
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