| article html file updated | 31 August 2025 02:56 CEST | Update | https://www.mdpi.com/2311-7524/5/4/72 |
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| article pdf uploaded. | 15 October 2019 13:24 CEST | Version of Record | https://www.mdpi.com/2311-7524/5/4/72/pdf |
| article xml uploaded. | 15 October 2019 13:24 CEST | Update | https://www.mdpi.com/2311-7524/5/4/72/xml |
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