| article html file updated | 29 August 2025 22:34 CEST | Update | https://www.mdpi.com/1999-4893/9/1/7 |
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| article pdf uploaded. | 12 January 2016 14:19 CET | Updated version of record | https://www.mdpi.com/1999-4893/9/1/7/pdf |
| article pdf uploaded. | 11 January 2016 13:20 CET | Version of Record | https://www.mdpi.com/1999-4893/9/1/7/pdf-vor |
| article xml uploaded. | 11 January 2016 13:20 CET | Original file | https://www.mdpi.com/1999-4893/9/1/7/xml |
