| article html file updated | 14 August 2026 14:12 CEST | Update | https://www.mdpi.com/1996-1073/10/5/609 |
| article html file updated | 8 February 2020 04:50 CET | Update | N/A |
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| article pdf uploaded. | 1 May 2017 10:46 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/5/609/pdf |
