| article html file updated | 7 February 2020 07:21 CET | Update | https://www.mdpi.com/1424-8220/16/4/543 |
| article html file updated | 5 May 2019 18:27 CEST | Update | - |
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| article html file updated | 29 April 2016 05:06 CEST | Update | - |
| article html file updated | 15 April 2016 14:14 CEST | Original file | - |
| article xml uploaded. | 15 April 2016 14:13 CEST | Update | https://www.mdpi.com/1424-8220/16/4/543/xml |
| article pdf uploaded. | 15 April 2016 14:13 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/543/pdf |
