| article html file updated | 30 August 2025 03:50 CEST | Update | https://www.mdpi.com/2313-4321/3/2/18 |
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| article html file updated | 8 May 2018 08:01 CEST | Original file | N/A |
| article pdf uploaded. | 8 May 2018 08:00 CEST | Version of Record | https://www.mdpi.com/2313-4321/3/2/18/pdf |
| article xml uploaded. | 8 May 2018 08:00 CEST | Update | https://www.mdpi.com/2313-4321/3/2/18/xml |
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