| article html file updated | 30 August 2025 15:19 CEST | Update | https://www.mdpi.com/2306-5729/4/2/73 |
| article html file updated | 19 July 2022 18:52 CEST | Update | - |
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| article pdf uploaded. | 21 May 2019 12:55 CEST | Version of Record | https://www.mdpi.com/2306-5729/4/2/73/pdf |
| article xml uploaded. | 21 May 2019 12:55 CEST | Update | https://www.mdpi.com/2306-5729/4/2/73/xml |
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