| article html file updated | 31 August 2025 06:56 CEST | Update | https://www.mdpi.com/2073-4409/9/1/12 |
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| article pdf uploaded. | 26 December 2019 11:27 CET | Updated version of record | https://www.mdpi.com/2073-4409/9/1/12/pdf |
| article xml uploaded. | 26 December 2019 11:27 CET | Update | https://www.mdpi.com/2073-4409/9/1/12/xml |
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| article pdf uploaded. | 19 December 2019 09:45 CET | Version of Record | https://www.mdpi.com/2073-4409/9/1/12/pdf-vor |
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