| article html file updated | 14 August 2026 14:57 CEST | Update | https://www.mdpi.com/1999-4907/8/6/197 |
| article html file updated | 8 February 2020 07:33 CET | Update | N/A |
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| article pdf uploaded. | 6 June 2017 14:21 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/6/197/pdf |
