| article html file updated | 30 August 2025 20:41 CEST | Update | https://www.mdpi.com/1422-0067/20/11/2731 |
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| article pdf uploaded. | 6 June 2019 11:34 CEST | Updated version of record | https://www.mdpi.com/1422-0067/20/11/2731/pdf |
| article xml uploaded. | 6 June 2019 11:34 CEST | Update | https://www.mdpi.com/1422-0067/20/11/2731/xml |
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| article pdf uploaded. | 3 June 2019 15:38 CEST | Version of Record | https://www.mdpi.com/1422-0067/20/11/2731/pdf-vor |
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