| article html file updated | 31 August 2025 04:08 CEST | Update | https://www.mdpi.com/1996-1073/12/22/4227 |
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| article pdf uploaded. | 6 November 2019 08:07 CET | Version of Record | https://www.mdpi.com/1996-1073/12/22/4227/pdf |
| article xml uploaded. | 6 November 2019 08:07 CET | Update | https://www.mdpi.com/1996-1073/12/22/4227/xml |
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