| article html file updated | 2 September 2025 03:20 CEST | Update | https://www.mdpi.com/2227-9717/9/4/668 |
| article html file updated | 25 July 2022 11:36 CEST | Update | - |
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| article xml uploaded. | 10 April 2021 10:10 CEST | Update | https://www.mdpi.com/2227-9717/9/4/668/xml |
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