| article html file updated | 30 August 2025 09:41 CEST | Update | https://www.mdpi.com/2313-433X/4/12/144 |
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| article pdf uploaded. | 7 December 2018 08:39 CET | Version of Record | https://www.mdpi.com/2313-433X/4/12/144/pdf |
| article xml uploaded. | 7 December 2018 08:39 CET | Update | https://www.mdpi.com/2313-433X/4/12/144/xml |
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