| article html file updated | 30 August 2025 13:11 CEST | Update | https://www.mdpi.com/1996-1073/12/6/1070 |
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| article pdf uploaded. | 20 March 2019 07:59 CET | Version of Record | https://www.mdpi.com/1996-1073/12/6/1070/pdf |
| article xml uploaded. | 20 March 2019 07:59 CET | Update | https://www.mdpi.com/1996-1073/12/6/1070/xml |
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