| article html file updated | 31 August 2025 05:56 CEST | Update | https://www.mdpi.com/2077-1312/7/12/447 |
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| article pdf uploaded. | 6 December 2019 13:46 CET | Version of Record | https://www.mdpi.com/2077-1312/7/12/447/pdf |
| article xml uploaded. | 6 December 2019 13:46 CET | Update | https://www.mdpi.com/2077-1312/7/12/447/xml |
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