| article html file updated | 31 August 2025 11:15 CEST | Update | https://www.mdpi.com/1999-5903/12/2/31 |
| article html file updated | 20 July 2022 19:46 CEST | Update | - |
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| article pdf uploaded. | 29 February 2020 15:06 CET | Updated version of record | https://www.mdpi.com/1999-5903/12/2/31/pdf |
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