| article html file updated | 8 February 2020 14:35 CET | Update | https://www.mdpi.com/1424-8220/17/9/1968 |
| article html file updated | 26 September 2019 18:39 CEST | Update | - |
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| article html file updated | 30 September 2017 14:34 CEST | Update | - |
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| article xml uploaded. | 26 August 2017 10:48 CEST | Original file | https://www.mdpi.com/1424-8220/17/9/1968/xml |
| article pdf uploaded. | 26 August 2017 10:48 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/9/1968/pdf |
