| article html file updated | 13 August 2026 01:21 CEST | Update | https://www.mdpi.com/1911-8074/7/2/80 |
| article html file updated | 6 February 2020 10:12 CET | Update | N/A |
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| article pdf uploaded. | 25 June 2014 09:02 CEST | Version of Record | https://www.mdpi.com/1911-8074/7/2/80/pdf |
