| article html file updated | 30 August 2025 00:22 CEST | Update | https://www.mdpi.com/2312-7481/3/1/7 |
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| article pdf uploaded. | 20 February 2017 12:34 CET | Updated version of record | https://www.mdpi.com/2312-7481/3/1/7/pdf |
| article pdf uploaded. | 9 February 2017 11:32 CET | Version of Record | https://www.mdpi.com/2312-7481/3/1/7/pdf-vor |
