| article html file updated | 9 February 2020 02:16 CET | Update | https://www.mdpi.com/2071-1050/10/1/123 |
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| article xml uploaded. | 7 January 2018 12:52 CET | Update | https://www.mdpi.com/2071-1050/10/1/123/xml |
| article pdf uploaded. | 7 January 2018 12:52 CET | Version of Record | https://www.mdpi.com/2071-1050/10/1/123/pdf |