| article html file updated | 2 September 2025 02:24 CEST | Update | https://www.mdpi.com/2221-3759/9/2/13 |
| article html file updated | 25 July 2022 10:16 CEST | Update | N/A |
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| article pdf uploaded. | 1 April 2021 09:59 CEST | Updated version of record | https://www.mdpi.com/2221-3759/9/2/13/pdf |
| article xml uploaded. | 1 April 2021 09:59 CEST | Update | https://www.mdpi.com/2221-3759/9/2/13/xml |
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