| article html file updated | 30 August 2025 20:50 CEST | Update | https://www.mdpi.com/2073-4409/8/6/550 |
| article html file updated | 20 July 2022 15:57 CEST | Update | - |
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| article pdf uploaded. | 6 June 2019 14:07 CEST | Version of Record | https://www.mdpi.com/2073-4409/8/6/550/pdf |
| article xml uploaded. | 6 June 2019 14:07 CEST | Update | https://www.mdpi.com/2073-4409/8/6/550/xml |
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