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| article html file updated | 25 December 2017 08:08 CET | Original file | - |
| article xml uploaded. | 25 December 2017 08:07 CET | Update | https://www.mdpi.com/1420-3049/23/1/47/xml |
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| article pdf uploaded. | 25 December 2017 08:07 CET | Version of Record | https://www.mdpi.com/1420-3049/23/1/47/pdf |