| article html file updated | 30 August 2025 15:13 CEST | Update | https://www.mdpi.com/2227-7390/7/5/440 |
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| article pdf uploaded. | 17 May 2019 14:56 CEST | Version of Record | https://www.mdpi.com/2227-7390/7/5/440/pdf |
| article xml uploaded. | 17 May 2019 14:56 CEST | Update | https://www.mdpi.com/2227-7390/7/5/440/xml |
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