| article html file updated | 30 August 2025 09:40 CEST | Update | https://www.mdpi.com/1422-0067/19/12/3921 |
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| article pdf uploaded. | 7 December 2018 08:01 CET | Version of Record | https://www.mdpi.com/1422-0067/19/12/3921/pdf |
| article xml uploaded. | 7 December 2018 08:01 CET | Update | https://www.mdpi.com/1422-0067/19/12/3921/xml |
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