| article html file updated | 31 August 2025 09:20 CEST | Update | https://www.mdpi.com/2077-1312/8/1/55 |
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| article pdf uploaded. | 18 January 2020 09:46 CET | Version of Record | https://www.mdpi.com/2077-1312/8/1/55/pdf |
| article xml uploaded. | 18 January 2020 09:46 CET | Update | https://www.mdpi.com/2077-1312/8/1/55/xml |
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