| article html file updated | 31 August 2025 16:25 CEST | Update | https://www.mdpi.com/2223-7747/9/4/452 |
| article html file updated | 21 July 2022 00:55 CEST | Update | - |
| article html file updated | 9 May 2020 04:27 CEST | Update | - |
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| article xml uploaded. | 3 April 2020 14:58 CEST | Update | https://www.mdpi.com/2223-7747/9/4/452/xml |
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