| article html file updated | 31 August 2025 16:00 CEST | Update | https://www.mdpi.com/2311-5629/6/2/19 |
| article html file updated | 21 July 2022 00:29 CEST | Update | - |
| article html file updated | 18 November 2020 01:27 CET | Update | - |
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| article pdf uploaded. | 31 March 2020 13:19 CEST | Updated version of record | https://www.mdpi.com/2311-5629/6/2/19/pdf |
| article xml uploaded. | 31 March 2020 13:19 CEST | Update | https://www.mdpi.com/2311-5629/6/2/19/xml |
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