| article html file updated | 31 August 2025 06:45 CEST | Update | https://www.mdpi.com/1424-2818/11/12/244 |
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| article pdf uploaded. | 17 December 2019 10:43 CET | Version of Record | https://www.mdpi.com/1424-2818/11/12/244/pdf |
| article xml uploaded. | 17 December 2019 10:43 CET | Update | https://www.mdpi.com/1424-2818/11/12/244/xml |
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