| article html file updated | 31 August 2025 05:39 CEST | Update | https://www.mdpi.com/2304-8158/8/12/637 |
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| article pdf uploaded. | 18 December 2019 11:37 CET | Updated version of record | https://www.mdpi.com/2304-8158/8/12/637/pdf |
| article xml uploaded. | 18 December 2019 11:37 CET | Update | https://www.mdpi.com/2304-8158/8/12/637/xml |
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| article pdf uploaded. | 3 December 2019 16:46 CET | Version of Record | https://www.mdpi.com/2304-8158/8/12/637/pdf-vor |
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