| article html file updated | 29 August 2025 22:56 CEST | Update | https://www.mdpi.com/1424-8220/16/4/489 |
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| article xml uploaded. | 7 April 2016 11:24 CEST | Update | https://www.mdpi.com/1424-8220/16/4/489/xml |
| article pdf uploaded. | 7 April 2016 11:24 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/489/pdf |
