| article html file updated | 14 August 2026 20:05 CEST | Update | https://www.mdpi.com/2227-9717/5/4/84 |
| article html file updated | 8 February 2020 23:58 CET | Update | N/A |
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| article pdf uploaded. | 13 December 2017 14:20 CET | Version of Record | https://www.mdpi.com/2227-9717/5/4/84/pdf |
