| article html file updated | 12 August 2026 20:57 CEST | Update | https://www.mdpi.com/2218-1989/3/4/1076 |
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| article xml file uploaded | 18 March 2014 09:54 CET | Original file | https://www.mdpi.com/2218-1989/3/4/1076/xml |
| article pdf uploaded. | 11 November 2013 14:46 CET | Version of Record | https://www.mdpi.com/2218-1989/3/4/1076/pdf |
