| article html file updated | 30 August 2025 11:16 CEST | Update | https://www.mdpi.com/1996-1073/12/2/318 |
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| article pdf uploaded. | 22 January 2019 05:44 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/2/318/pdf |
| article xml uploaded. | 22 January 2019 05:44 CET | Update | https://www.mdpi.com/1996-1073/12/2/318/xml |
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| article pdf uploaded. | 20 January 2019 11:49 CET | Version of Record | https://www.mdpi.com/1996-1073/12/2/318/pdf-vor |
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