| article html file updated | 24 December 2025 15:40 CET | Update | https://www.mdpi.com/2411-5142/4/3/60 |
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| article pdf uploaded. | 20 August 2019 11:40 CEST | Version of Record | https://www.mdpi.com/2411-5142/4/3/60/pdf |
| article xml uploaded. | 20 August 2019 11:40 CEST | Update | https://www.mdpi.com/2411-5142/4/3/60/xml |
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