| article html file updated | 30 August 2025 06:43 CEST | Update | https://www.mdpi.com/2313-433X/4/9/108 |
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| article html file updated | 6 September 2018 14:54 CEST | Original file | - |
| article pdf uploaded. | 6 September 2018 14:52 CEST | Version of Record | https://www.mdpi.com/2313-433X/4/9/108/pdf |
| article xml uploaded. | 6 September 2018 14:52 CEST | Update | https://www.mdpi.com/2313-433X/4/9/108/xml |
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