| article html file updated | 12 August 2026 21:24 CEST | Update | https://www.mdpi.com/2079-6374/3/4/400 |
| article html file updated | 6 February 2020 06:05 CET | Update | N/A |
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| article pdf uploaded. | 10 December 2013 14:17 CET | Version of Record | https://www.mdpi.com/2079-6374/3/4/400/pdf |
