| article html file updated | 30 August 2025 04:40 CEST | Update | https://www.mdpi.com/2079-4991/8/6/449 |
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| article pdf uploaded. | 20 June 2018 14:17 CEST | Version of Record | https://www.mdpi.com/2079-4991/8/6/449/pdf |
| article xml uploaded. | 20 June 2018 14:17 CEST | Update | https://www.mdpi.com/2079-4991/8/6/449/xml |
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