| article html file updated | 1 September 2025 13:48 CEST | Update | https://www.mdpi.com/2199-8531/6/4/159 |
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| article pdf uploaded. | 20 November 2020 10:39 CET | Updated version of record | https://www.mdpi.com/2199-8531/6/4/159/pdf |
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| article html file updated | 18 November 2020 15:57 CET | Original file | N/A |
| article pdf uploaded. | 18 November 2020 15:56 CET | Version of Record | https://www.mdpi.com/2199-8531/6/4/159/pdf-vor |
| article xml uploaded. | 18 November 2020 15:56 CET | Update | N/A |
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