| article html file updated | 9 February 2020 03:09 CET | Update | https://www.mdpi.com/1424-8220/18/1/237 |
| article html file updated | 29 September 2019 22:32 CEST | Update | N/A |
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| article html file updated | 15 January 2018 16:34 CET | Original file | N/A |
| article xml uploaded. | 15 January 2018 16:32 CET | Update | https://www.mdpi.com/1424-8220/18/1/237/xml |
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| article pdf uploaded. | 15 January 2018 16:32 CET | Version of Record | https://www.mdpi.com/1424-8220/18/1/237/pdf |