| article html file updated | 30 August 2025 20:41 CEST | Update | https://www.mdpi.com/2073-8994/11/6/751 |
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| article pdf uploaded. | 14 June 2019 10:33 CEST | Updated version of record | https://www.mdpi.com/2073-8994/11/6/751/pdf |
| article xml uploaded. | 14 June 2019 10:33 CEST | Update | https://www.mdpi.com/2073-8994/11/6/751/xml |
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| article pdf uploaded. | 3 June 2019 16:46 CEST | Version of Record | https://www.mdpi.com/2073-8994/11/6/751/pdf-vor |
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