| article html file updated | 29 August 2025 20:49 CEST | Update | https://www.mdpi.com/2077-0375/3/4/331 |
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| article xml file uploaded | 18 March 2014 09:52 CET | Original file | https://www.mdpi.com/2077-0375/3/4/331/xml |
| article supplementary file uploaded. | 25 October 2013 14:00 CEST | - | https://www.mdpi.com/2077-0375/3/4/331#supplementary |
| article pdf uploaded. | 25 October 2013 14:00 CEST | Version of Record | https://www.mdpi.com/2077-0375/3/4/331/pdf |
