| article html file updated | 30 August 2025 06:45 CEST | Update | https://www.mdpi.com/2076-3387/8/3/52 |
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| article pdf uploaded. | 8 September 2018 06:29 CEST | Version of Record | https://www.mdpi.com/2076-3387/8/3/52/pdf |
| article xml uploaded. | 8 September 2018 06:29 CEST | Update | https://www.mdpi.com/2076-3387/8/3/52/xml |
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