| article html file updated | 31 August 2025 11:45 CEST | Update | https://www.mdpi.com/2223-7747/9/2/249 |
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| article supplementary file uploaded. | 15 February 2020 07:48 CET | - | https://www.mdpi.com/2223-7747/9/2/249#supplementary |
| article pdf uploaded. | 15 February 2020 07:48 CET | Version of Record | https://www.mdpi.com/2223-7747/9/2/249/pdf |
| article xml uploaded. | 15 February 2020 07:48 CET | Update | https://www.mdpi.com/2223-7747/9/2/249/xml |
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