| article html file updated | 30 August 2025 06:20 CEST | Update | https://www.mdpi.com/1996-1073/11/9/2220 |
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| article pdf uploaded. | 24 August 2018 13:03 CEST | Version of Record | https://www.mdpi.com/1996-1073/11/9/2220/pdf |
| article xml uploaded. | 24 August 2018 13:03 CEST | Update | https://www.mdpi.com/1996-1073/11/9/2220/xml |
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