| article html file updated | 30 August 2025 23:55 CEST | Update | https://www.mdpi.com/2077-1312/7/8/271 |
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| article pdf uploaded. | 14 August 2019 10:25 CEST | Version of Record | https://www.mdpi.com/2077-1312/7/8/271/pdf |
| article xml uploaded. | 14 August 2019 10:25 CEST | Update | https://www.mdpi.com/2077-1312/7/8/271/xml |
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