| article html file updated | 29 August 2025 21:01 CEST | Update | https://www.mdpi.com/1999-4915/6/4/1540 |
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| article xml file uploaded | 12 May 2014 15:34 CEST | Original file | https://www.mdpi.com/1999-4915/6/4/1540/xml |
| article pdf uploaded. | 2 April 2014 09:11 CEST | Version of Record | https://www.mdpi.com/1999-4915/6/4/1540/pdf |
