| article html file updated | 2 September 2025 06:29 CEST | Update | https://www.mdpi.com/2313-4321/6/2/30 |
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| article pdf uploaded. | 11 May 2021 11:25 CEST | Updated version of record | https://www.mdpi.com/2313-4321/6/2/30/pdf |
| article xml uploaded. | 11 May 2021 11:25 CEST | Update | https://www.mdpi.com/2313-4321/6/2/30/xml |
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| article pdf uploaded. | 10 May 2021 02:37 CEST | Updated version of record | https://www.mdpi.com/2313-4321/6/2/30/pdf-vor |
| article pdf uploaded. | 8 May 2021 13:29 CEST | Version of Record | https://www.mdpi.com/2313-4321/6/2/30/pdf-vor |
