| article html file updated | 30 August 2025 21:46 CEST | Update | https://www.mdpi.com/2079-7737/8/3/52 |
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| article pdf uploaded. | 28 June 2019 12:11 CEST | Version of Record | https://www.mdpi.com/2079-7737/8/3/52/pdf |
| article xml uploaded. | 28 June 2019 12:11 CEST | Update | https://www.mdpi.com/2079-7737/8/3/52/xml |
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