| article html file updated | 30 August 2025 22:47 CEST | Update | https://www.mdpi.com/2218-6581/8/3/59 |
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| article pdf uploaded. | 20 July 2019 12:27 CEST | Version of Record | https://www.mdpi.com/2218-6581/8/3/59/pdf |
| article xml uploaded. | 20 July 2019 12:27 CEST | Update | https://www.mdpi.com/2218-6581/8/3/59/xml |
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