| article html file updated | 11 February 2020 22:54 CET | Update | https://www.mdpi.com/2571-9408/2/1/61 |
| article html file updated | 26 April 2019 01:48 CEST | Update | N/A |
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| article xml uploaded. | 18 March 2019 11:19 CET | Update | https://www.mdpi.com/2571-9408/2/1/61/xml |
| article pdf uploaded. | 18 March 2019 11:08 CET | Version of Record | https://www.mdpi.com/2571-9408/2/1/61/pdf |
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