| article html file updated | 8 February 2020 16:49 CET | Update | https://www.mdpi.com/2414-6366/2/4/49 |
| article html file updated | 27 September 2019 07:03 CEST | Update | - |
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| article html file updated | 9 October 2017 06:27 CEST | Original file | - |
| article xml uploaded. | 9 October 2017 06:26 CEST | Update | https://www.mdpi.com/2414-6366/2/4/49/xml |
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| article pdf uploaded. | 21 September 2017 13:59 CEST | Version of Record | https://www.mdpi.com/2414-6366/2/4/49/pdf |