| article html file updated | 31 August 2025 07:28 CEST | Update | https://www.mdpi.com/2072-6694/12/1/68 |
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| article pdf uploaded. | 25 December 2019 12:23 CET | Version of Record | https://www.mdpi.com/2072-6694/12/1/68/pdf |
| article xml uploaded. | 25 December 2019 12:23 CET | Update | https://www.mdpi.com/2072-6694/12/1/68/xml |
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