| article html file updated | 16 August 2026 20:31 CEST | Update | https://www.mdpi.com/2227-7102/9/4/290 |
| article html file updated | 31 August 2025 05:56 CEST | Update | N/A |
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| article pdf uploaded. | 17 December 2019 11:43 CET | Updated version of record | https://www.mdpi.com/2227-7102/9/4/290/pdf |
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| article pdf uploaded. | 6 December 2019 13:44 CET | Version of Record | https://www.mdpi.com/2227-7102/9/4/290/pdf-vor |
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