| article html file updated | 30 August 2025 12:07 CEST | Update | https://www.mdpi.com/1996-1944/12/4/611 |
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| article pdf uploaded. | 18 February 2019 10:02 CET | Version of Record | https://www.mdpi.com/1996-1944/12/4/611/pdf |
| article xml uploaded. | 18 February 2019 10:02 CET | Update | https://www.mdpi.com/1996-1944/12/4/611/xml |
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