| article html file updated | 16 August 2026 23:25 CEST | Update | https://www.mdpi.com/2223-7747/9/1/81 |
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| article supplementary file uploaded. | 9 January 2020 09:10 CET | - | https://www.mdpi.com/2223-7747/9/1/81#supplementary |
| article pdf uploaded. | 9 January 2020 09:10 CET | Version of Record | https://www.mdpi.com/2223-7747/9/1/81/pdf |
| article xml uploaded. | 9 January 2020 09:10 CET | Update | https://www.mdpi.com/2223-7747/9/1/81/xml |
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