| article html file updated | 9 February 2020 12:15 CET | Update | https://www.mdpi.com/2071-1050/10/4/1050 |
| article html file updated | 2 October 2019 05:22 CEST | Update | - |
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| article html file updated | 2 April 2018 23:52 CEST | Original file | - |
| article xml uploaded. | 2 April 2018 15:40 CEST | Update | https://www.mdpi.com/2071-1050/10/4/1050/xml |
| article pdf uploaded. | 2 April 2018 15:40 CEST | Version of Record | https://www.mdpi.com/2071-1050/10/4/1050/pdf |
