| article html file updated | 30 August 2025 22:38 CEST | Update | https://www.mdpi.com/2309-608X/5/3/64 |
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| article pdf uploaded. | 18 July 2019 06:10 CEST | Version of Record | https://www.mdpi.com/2309-608X/5/3/64/pdf |
| article xml uploaded. | 18 July 2019 06:10 CEST | Update | https://www.mdpi.com/2309-608X/5/3/64/xml |
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