| article html file updated | 14 August 2026 13:45 CEST | Update | https://www.mdpi.com/1999-4915/9/4/74 |
| article html file updated | 8 February 2020 03:14 CET | Update | N/A |
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| article pdf uploaded. | 10 April 2017 11:10 CEST | Version of Record | https://www.mdpi.com/1999-4915/9/4/74/pdf |
