| article html file updated | 30 August 2025 21:02 CEST | Update | https://www.mdpi.com/2414-4088/3/2/42 |
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| article html file updated | 12 June 2019 10:54 CEST | Original file | - |
| article pdf uploaded. | 12 June 2019 10:52 CEST | Version of Record | https://www.mdpi.com/2414-4088/3/2/42/pdf |
| article xml uploaded. | 12 June 2019 10:52 CEST | Update | https://www.mdpi.com/2414-4088/3/2/42/xml |
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