| article html file updated | 31 August 2025 07:53 CEST | Update | https://www.mdpi.com/2071-1050/12/1/331 |
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| article pdf uploaded. | 31 December 2019 14:14 CET | Updated version of record | https://www.mdpi.com/2071-1050/12/1/331/pdf |
| article xml uploaded. | 31 December 2019 14:14 CET | Update | https://www.mdpi.com/2071-1050/12/1/331/xml |
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