| article html file updated | 15 August 2026 17:24 CEST | Update | https://www.mdpi.com/1424-8220/19/4/872 |
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| article pdf uploaded. | 20 February 2019 07:38 CET | Version of Record | https://www.mdpi.com/1424-8220/19/4/872/pdf |
| article xml uploaded. | 20 February 2019 07:38 CET | Update | https://www.mdpi.com/1424-8220/19/4/872/xml |
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