| article html file updated | 24 December 2025 23:24 CET | Update | https://www.mdpi.com/2227-9032/8/4/490 |
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| article xml uploaded. | 18 November 2020 02:18 CET | Update | https://www.mdpi.com/2227-9032/8/4/490/xml |
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| article pdf uploaded. | 17 November 2020 13:40 CET | Version of Record | https://www.mdpi.com/2227-9032/8/4/490/pdf-vor |
