| article html file updated | 31 August 2025 06:39 CEST | Update | https://www.mdpi.com/2073-8994/11/12/1520 |
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| article pdf uploaded. | 19 December 2019 10:59 CET | Updated version of record | https://www.mdpi.com/2073-8994/11/12/1520/pdf |
| article xml uploaded. | 19 December 2019 10:59 CET | Update | https://www.mdpi.com/2073-8994/11/12/1520/xml |
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| article pdf uploaded. | 15 December 2019 12:22 CET | Version of Record | https://www.mdpi.com/2073-8994/11/12/1520/pdf-vor |
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