| article html file updated | 13 August 2026 03:57 CEST | Update | https://www.mdpi.com/2218-1989/4/3/775 |
| article html file updated | 6 February 2020 12:09 CET | Update | N/A |
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| article pdf uploaded. | 11 September 2014 14:53 CEST | Version of Record | https://www.mdpi.com/2218-1989/4/3/775/pdf |
