| article html file updated | 31 August 2025 03:53 CEST | Update | https://www.mdpi.com/2311-553X/5/4/50 |
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| article html file updated | 14 February 2020 05:52 CET | Update | - |
| article html file updated | 14 November 2019 09:00 CET | Original file | - |
| article pdf uploaded. | 14 November 2019 08:59 CET | Updated version of record | https://www.mdpi.com/2311-553X/5/4/50/pdf |
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| article pdf uploaded. | 1 November 2019 10:25 CET | Version of Record | https://www.mdpi.com/2311-553X/5/4/50/pdf-vor |
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