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| article supplementary file uploaded. | 9 September 2013 16:25 CEST | - | https://www.mdpi.com/2073-4360/5/3/1102#supplementary |
| article pdf uploaded. | 6 September 2013 13:49 CEST | Version of Record | https://www.mdpi.com/2073-4360/5/3/1102/pdf |