| article html file updated | 30 August 2025 10:41 CEST | Update | https://www.mdpi.com/2073-4344/9/1/52 |
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| article pdf uploaded. | 7 January 2019 12:42 CET | Version of Record | https://www.mdpi.com/2073-4344/9/1/52/pdf |
| article xml uploaded. | 7 January 2019 12:42 CET | Update | https://www.mdpi.com/2073-4344/9/1/52/xml |
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