| article html file updated | 31 August 2025 07:26 CEST | Update | https://www.mdpi.com/2077-1312/8/1/15 |
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| article pdf uploaded. | 31 December 2019 10:45 CET | Updated version of record | https://www.mdpi.com/2077-1312/8/1/15/pdf |
| article xml uploaded. | 31 December 2019 10:45 CET | Update | https://www.mdpi.com/2077-1312/8/1/15/xml |
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| article pdf uploaded. | 24 December 2019 16:15 CET | Version of Record | https://www.mdpi.com/2077-1312/8/1/15/pdf-vor |
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