| article html file updated | 30 August 2025 12:45 CEST | Update | https://www.mdpi.com/2227-7080/7/1/28 |
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| article pdf uploaded. | 7 March 2019 12:33 CET | Version of Record | https://www.mdpi.com/2227-7080/7/1/28/pdf |
| article xml uploaded. | 7 March 2019 12:33 CET | Update | https://www.mdpi.com/2227-7080/7/1/28/xml |
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