| article html file updated | 12 August 2026 22:07 CEST | Update | https://www.mdpi.com/2071-1050/6/2/571 |
| article html file updated | 6 February 2020 06:57 CET | Update | N/A |
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| article xml file uploaded | 24 June 2014 12:24 CEST | Original file | https://www.mdpi.com/2071-1050/6/2/571/xml |
| article pdf uploaded. | 27 January 2014 11:20 CET | Version of Record | https://www.mdpi.com/2071-1050/6/2/571/pdf |
