| article html file updated | 29 August 2025 21:29 CEST | Update | https://www.mdpi.com/1660-3397/13/2/756 |
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| article xml file uploaded | 28 February 2015 03:09 CET | Update | https://www.mdpi.com/1660-3397/13/2/756/xml |
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| article pdf uploaded. | 29 January 2015 10:37 CET | Updated version of record | https://www.mdpi.com/1660-3397/13/2/756/pdf |
| article pdf uploaded. | 28 January 2015 11:26 CET | Version of Record | https://www.mdpi.com/1660-3397/13/2/756/pdf-vor |
