| article html file updated | 31 August 2025 08:24 CEST | Update | https://www.mdpi.com/2306-5338/7/1/6 |
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| article html file updated | 15 February 2020 00:50 CET | Update | - |
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| article pdf uploaded. | 21 January 2020 09:17 CET | Updated version of record | https://www.mdpi.com/2306-5338/7/1/6/pdf |
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| article pdf uploaded. | 7 January 2020 12:29 CET | Version of Record | https://www.mdpi.com/2306-5338/7/1/6/pdf-vor |
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