| article html file updated | 31 August 2025 23:09 CEST | Update | https://www.mdpi.com/2311-5629/6/2/39 |
| article html file updated | 21 July 2022 20:24 CEST | Update | - |
| article html file updated | 18 November 2020 01:55 CET | Update | - |
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| article xml uploaded. | 10 June 2020 11:41 CEST | Update | https://www.mdpi.com/2311-5629/6/2/39/xml |
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