| article html file updated | 30 August 2025 21:32 CEST | Update | https://www.mdpi.com/2227-9067/6/6/80 |
| article html file updated | 20 July 2022 15:06 CEST | Update | - |
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| article html file updated | 22 October 2019 09:12 CEST | Update | - |
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| article pdf uploaded. | 24 June 2019 05:47 CEST | Version of Record | https://www.mdpi.com/2227-9067/6/6/80/pdf |
| article xml uploaded. | 24 June 2019 05:47 CEST | Update | https://www.mdpi.com/2227-9067/6/6/80/xml |
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