| article html file updated | 9 February 2020 10:52 CET | Update | https://www.mdpi.com/1424-8220/18/4/947 |
| article html file updated | 1 October 2019 21:11 CEST | Update | - |
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| article xml uploaded. | 22 March 2018 17:05 CET | Update | https://www.mdpi.com/1424-8220/18/4/947/xml |
| article pdf uploaded. | 22 March 2018 17:05 CET | Version of Record | https://www.mdpi.com/1424-8220/18/4/947/pdf |
