| article html file updated | 29 August 2025 20:50 CEST | Update | https://www.mdpi.com/2076-0760/2/4/270 |
| article html file updated | 15 July 2022 22:40 CEST | Update | N/A |
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| article pdf uploaded. | 8 November 2013 16:35 CET | Version of Record | https://www.mdpi.com/2076-0760/2/4/270/pdf |
