| article html file updated | 31 August 2025 09:15 CEST | Update | https://www.mdpi.com/2309-608X/6/1/16 |
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| article pdf uploaded. | 17 January 2020 10:11 CET | Version of Record | https://www.mdpi.com/2309-608X/6/1/16/pdf |
| article xml uploaded. | 17 January 2020 10:11 CET | Update | https://www.mdpi.com/2309-608X/6/1/16/xml |
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