| article html file updated | 9 February 2020 02:23 CET | Update | https://www.mdpi.com/1424-8220/18/1/156 |
| article html file updated | 29 September 2019 18:23 CEST | Update | - |
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| article html file updated | 8 January 2018 18:08 CET | Original file | - |
| article xml uploaded. | 8 January 2018 18:07 CET | Update | https://www.mdpi.com/1424-8220/18/1/156/xml |
| article pdf uploaded. | 8 January 2018 18:07 CET | Version of Record | https://www.mdpi.com/1424-8220/18/1/156/pdf |