| article html file updated | 31 August 2025 05:53 CEST | Update | https://www.mdpi.com/2304-8158/8/12/649 |
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| article pdf uploaded. | 6 December 2019 09:27 CET | Version of Record | https://www.mdpi.com/2304-8158/8/12/649/pdf |
| article xml uploaded. | 6 December 2019 09:27 CET | Update | https://www.mdpi.com/2304-8158/8/12/649/xml |
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