| article html file updated | 30 August 2025 04:06 CEST | Update | https://www.mdpi.com/2071-1050/10/6/1720 |
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| article html file updated | 25 May 2018 10:22 CEST | Original file | - |
| article pdf uploaded. | 25 May 2018 10:21 CEST | Updated version of record | https://www.mdpi.com/2071-1050/10/6/1720/pdf |
| article xml uploaded. | 25 May 2018 10:21 CEST | Update | https://www.mdpi.com/2071-1050/10/6/1720/xml |
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| article pdf uploaded. | 24 May 2018 15:24 CEST | Updated version of record | https://www.mdpi.com/2071-1050/10/6/1720/pdf-vor |
| article pdf uploaded. | 24 May 2018 15:23 CEST | Version of Record | https://www.mdpi.com/2071-1050/10/6/1720/pdf-vor |
| article xml file uploaded | 24 May 2018 15:23 CEST | Original file | - |
