| article html file updated | 31 August 2025 09:29 CEST | Update | https://www.mdpi.com/2077-1312/8/1/61 |
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| article pdf uploaded. | 20 January 2020 11:35 CET | Version of Record | https://www.mdpi.com/2077-1312/8/1/61/pdf |
| article xml uploaded. | 20 January 2020 11:35 CET | Update | https://www.mdpi.com/2077-1312/8/1/61/xml |
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