| article html file updated | 9 February 2020 06:41 CET | Update | https://www.mdpi.com/2071-1050/10/2/515 |
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| article xml uploaded. | 14 February 2018 14:07 CET | Original file | https://www.mdpi.com/2071-1050/10/2/515/xml |
| article pdf uploaded. | 14 February 2018 14:07 CET | Version of Record | https://www.mdpi.com/2071-1050/10/2/515/pdf |