| article html file updated | 29 August 2025 22:39 CEST | Update | https://www.mdpi.com/1660-4601/13/2/173 |
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| article xml uploaded. | 19 February 2016 10:56 CET | Update | https://www.mdpi.com/1660-4601/13/2/173/xml |
| article pdf uploaded. | 19 February 2016 10:54 CET | Updated version of record | https://www.mdpi.com/1660-4601/13/2/173/pdf |
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| article pdf uploaded. | 29 January 2016 08:17 CET | Version of Record | https://www.mdpi.com/1660-4601/13/2/173/pdf-vor |
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