| article html file updated | 7 February 2020 11:08 CET | Update | https://www.mdpi.com/1424-8220/16/7/991 |
| article html file updated | 5 May 2019 11:10 CEST | Update | - |
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| article xml uploaded. | 1 July 2016 11:44 CEST | Original file | https://www.mdpi.com/1424-8220/16/7/991/xml |
| article pdf uploaded. | 1 July 2016 11:44 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/7/991/pdf |
