| article html file updated | 29 August 2025 22:32 CEST | Update | https://www.mdpi.com/2072-6643/8/1/2 |
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| article pdf uploaded. | 4 January 2016 11:40 CET | Version of Record | https://www.mdpi.com/2072-6643/8/1/2/pdf |
| article xml uploaded. | 4 January 2016 11:40 CET | Original file | https://www.mdpi.com/2072-6643/8/1/2/xml |
