| article html file updated | 31 August 2025 00:23 CEST | Update | https://www.mdpi.com/2226-471X/4/3/65 |
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| article pdf uploaded. | 23 August 2019 13:36 CEST | Version of Record | https://www.mdpi.com/2226-471X/4/3/65/pdf |
| article xml uploaded. | 23 August 2019 13:36 CEST | Update | https://www.mdpi.com/2226-471X/4/3/65/xml |
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