| article html file updated | 30 August 2025 03:45 CEST | Update | https://www.mdpi.com/1999-4907/9/5/239 |
| article html file updated | 21 August 2025 20:05 CEST | Update | - |
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| article pdf uploaded. | 2 May 2018 13:13 CEST | Updated version of record | https://www.mdpi.com/1999-4907/9/5/239/pdf |
| article html file updated | 2 May 2018 05:44 CEST | Original file | - |
| article pdf uploaded. | 2 May 2018 05:43 CEST | Version of Record | https://www.mdpi.com/1999-4907/9/5/239/pdf-vor |
| article xml uploaded. | 2 May 2018 05:43 CEST | Update | https://www.mdpi.com/1999-4907/9/5/239/xml |
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