| article html file updated | 31 August 2025 05:18 CEST | Update | https://www.mdpi.com/2220-9964/8/12/539 |
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| article pdf uploaded. | 28 November 2019 11:12 CET | Version of Record | https://www.mdpi.com/2220-9964/8/12/539/pdf |
| article xml uploaded. | 28 November 2019 11:12 CET | Update | https://www.mdpi.com/2220-9964/8/12/539/xml |
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