| article html file updated | 29 August 2025 23:46 CEST | Update | https://www.mdpi.com/1996-1073/9/10/839 |
| article html file updated | 16 July 2022 03:37 CEST | Update | - |
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| article xml uploaded. | 19 October 2016 06:22 CEST | Update | https://www.mdpi.com/1996-1073/9/10/839/xml |
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| article pdf uploaded. | 19 October 2016 06:22 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/10/839/pdf |
