| article html file updated | 8 February 2020 08:54 CET | Update | https://www.mdpi.com/1424-8220/17/6/1456 |
| article html file updated | 25 September 2019 11:38 CEST | Update | - |
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| article html file updated | 30 June 2017 12:07 CEST | Update | - |
| article html file updated | 21 June 2017 14:55 CEST | Original file | - |
| article xml uploaded. | 21 June 2017 14:54 CEST | Original file | https://www.mdpi.com/1424-8220/17/6/1456/xml |
| article pdf uploaded. | 21 June 2017 14:54 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/6/1456/pdf |
