| article html file updated | 30 August 2025 20:16 CEST | Update | https://www.mdpi.com/2075-4701/9/5/609 |
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| article pdf uploaded. | 28 May 2019 10:29 CEST | Updated version of record | https://www.mdpi.com/2075-4701/9/5/609/pdf |
| article xml uploaded. | 28 May 2019 10:29 CEST | Update | https://www.mdpi.com/2075-4701/9/5/609/xml |
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| article pdf uploaded. | 25 May 2019 11:19 CEST | Version of Record | https://www.mdpi.com/2075-4701/9/5/609/pdf-vor |
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