| article html file updated | 31 August 2025 07:53 CEST | Update | https://www.mdpi.com/2077-0375/10/1/7 |
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| article pdf uploaded. | 31 December 2019 11:25 CET | Version of Record | https://www.mdpi.com/2077-0375/10/1/7/pdf |
| article xml uploaded. | 31 December 2019 11:25 CET | Update | https://www.mdpi.com/2077-0375/10/1/7/xml |
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