| article html file updated | 30 August 2025 20:53 CEST | Update | https://www.mdpi.com/2075-1702/7/2/39 |
| article html file updated | 20 July 2022 15:54 CEST | Update | - |
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| article html file updated | 25 June 2019 13:56 CEST | Original file | - |
| article pdf uploaded. | 25 June 2019 13:55 CEST | Updated version of record | https://www.mdpi.com/2075-1702/7/2/39/pdf |
| article xml uploaded. | 25 June 2019 13:55 CEST | Update | https://www.mdpi.com/2075-1702/7/2/39/xml |
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| article pdf uploaded. | 7 June 2019 16:41 CEST | Version of Record | https://www.mdpi.com/2075-1702/7/2/39/pdf-vor |
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