| article html file updated | 31 August 2025 06:44 CEST | Update | https://www.mdpi.com/2079-6382/8/4/269 |
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| article pdf uploaded. | 19 December 2019 10:09 CET | Updated version of record | https://www.mdpi.com/2079-6382/8/4/269/pdf |
| article xml uploaded. | 19 December 2019 10:09 CET | Update | https://www.mdpi.com/2079-6382/8/4/269/xml |
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| article pdf uploaded. | 16 December 2019 17:49 CET | Version of Record | https://www.mdpi.com/2079-6382/8/4/269/pdf-vor |
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