| article html file updated | 13 August 2026 12:33 CEST | Update | https://www.mdpi.com/2071-1050/7/2/1558 |
| article html file updated | 6 February 2020 15:38 CET | Update | N/A |
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| article pdf uploaded. | 2 February 2015 10:27 CET | Version of Record | https://www.mdpi.com/2071-1050/7/2/1558/pdf |
