| article html file updated | 6 September 2025 19:24 CEST | Update | https://www.mdpi.com/2075-4442/8/1/2 |
| article html file updated | 19 July 2022 21:22 CEST | Update | - |
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| article html file updated | 26 December 2019 11:16 CET | Original file | - |
| article pdf uploaded. | 26 December 2019 11:14 CET | Updated version of record | https://www.mdpi.com/2075-4442/8/1/2/pdf |
| article xml uploaded. | 26 December 2019 11:14 CET | Update | https://www.mdpi.com/2075-4442/8/1/2/xml |
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| article pdf uploaded. | 18 December 2019 15:20 CET | Version of Record | https://www.mdpi.com/2075-4442/8/1/2/pdf-vor |
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