| article html file updated | 30 August 2025 11:15 CEST | Update | https://www.mdpi.com/1996-1073/12/2/313 |
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| article pdf uploaded. | 22 January 2019 10:57 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/2/313/pdf |
| article xml uploaded. | 22 January 2019 10:57 CET | Update | https://www.mdpi.com/1996-1073/12/2/313/xml |
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| article pdf uploaded. | 19 January 2019 12:21 CET | Version of Record | https://www.mdpi.com/1996-1073/12/2/313/pdf-vor |
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