| article html file updated | 30 August 2025 02:24 CEST | Update | https://www.mdpi.com/1660-4601/15/2/217 |
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| article xml uploaded. | 29 January 2018 12:34 CET | Original file | https://www.mdpi.com/1660-4601/15/2/217/xml |
| article pdf uploaded. | 29 January 2018 12:34 CET | Updated version of record | https://www.mdpi.com/1660-4601/15/2/217/pdf |
| article pdf uploaded. | 26 January 2018 18:38 CET | Version of Record | https://www.mdpi.com/1660-4601/15/2/217/pdf-vor |
