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| article supplementary file uploaded. | 1 September 2014 13:10 CEST | - | https://www.mdpi.com/1420-3049/19/9/13509#supplementary | 
| article pdf uploaded. | 1 September 2014 13:10 CEST | Version of Record | https://www.mdpi.com/1420-3049/19/9/13509/pdf |