| article html file updated | 12 August 2026 18:48 CEST | Update | https://www.mdpi.com/2076-0760/2/1/23 |
| article html file updated | 6 February 2020 00:52 CET | Update | N/A |
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| article pdf uploaded. | 7 March 2013 10:56 CET | Version of Record | https://www.mdpi.com/2076-0760/2/1/23/pdf |
