| article html file updated | 2 September 2025 01:04 CEST | Update | https://www.mdpi.com/1424-8220/21/6/2141 |
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| article pdf uploaded. | 22 March 2021 06:35 CET | Updated version of record | https://www.mdpi.com/1424-8220/21/6/2141/pdf |
| article xml uploaded. | 22 March 2021 06:35 CET | Update | https://www.mdpi.com/1424-8220/21/6/2141/xml |
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| article pdf uploaded. | 19 March 2021 15:51 CET | Updated version of record | https://www.mdpi.com/1424-8220/21/6/2141/pdf-vor |
| article xml file uploaded | 19 March 2021 15:51 CET | Update | - |
| article html file updated | 19 March 2021 14:57 CET | Original file | - |
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