| article html file updated | 30 August 2025 21:10 CEST | Update | https://www.mdpi.com/2075-4701/9/6/686 |
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| article html file updated | 19 June 2019 12:01 CEST | Original file | N/A |
| article pdf uploaded. | 19 June 2019 12:00 CEST | Updated version of record | https://www.mdpi.com/2075-4701/9/6/686/pdf |
| article xml uploaded. | 19 June 2019 12:00 CEST | Update | https://www.mdpi.com/2075-4701/9/6/686/xml |
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| article pdf uploaded. | 14 June 2019 16:34 CEST | Version of Record | https://www.mdpi.com/2075-4701/9/6/686/pdf-vor |
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