| article html file updated | 15 August 2026 21:57 CEST | Update | https://www.mdpi.com/2071-1050/11/8/2309 |
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| article pdf uploaded. | 17 April 2019 12:40 CEST | Version of Record | https://www.mdpi.com/2071-1050/11/8/2309/pdf |
| article xml uploaded. | 17 April 2019 12:40 CEST | Update | https://www.mdpi.com/2071-1050/11/8/2309/xml |
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