| article html file updated | 30 August 2025 09:14 CEST | Update | https://www.mdpi.com/2313-433X/4/12/139 |
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| article pdf uploaded. | 26 November 2018 14:28 CET | Version of Record | https://www.mdpi.com/2313-433X/4/12/139/pdf |
| article xml uploaded. | 26 November 2018 14:28 CET | Update | https://www.mdpi.com/2313-433X/4/12/139/xml |
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