| article html file updated | 30 August 2025 12:41 CEST | Update | https://www.mdpi.com/2079-9276/8/1/48 |
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| article pdf uploaded. | 6 March 2019 08:30 CET | Version of Record | https://www.mdpi.com/2079-9276/8/1/48/pdf |
| article xml uploaded. | 6 March 2019 08:30 CET | Update | https://www.mdpi.com/2079-9276/8/1/48/xml |
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