| article html file updated | 24 December 2025 16:39 CET | Update | https://www.mdpi.com/2077-0383/8/12/2161 |
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| article pdf uploaded. | 19 December 2019 08:52 CET | Updated version of record | https://www.mdpi.com/2077-0383/8/12/2161/pdf |
| article xml uploaded. | 19 December 2019 08:52 CET | Update | https://www.mdpi.com/2077-0383/8/12/2161/xml |
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| article pdf uploaded. | 6 December 2019 14:50 CET | Version of Record | https://www.mdpi.com/2077-0383/8/12/2161/pdf-vor |
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