| article html file updated | 31 August 2025 07:33 CEST | Update | https://www.mdpi.com/1999-4915/12/1/28 |
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| article pdf uploaded. | 26 December 2019 15:37 CET | Version of Record | https://www.mdpi.com/1999-4915/12/1/28/pdf |
| article xml uploaded. | 26 December 2019 15:37 CET | Update | https://www.mdpi.com/1999-4915/12/1/28/xml |
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