| article html file updated | 31 August 2025 07:01 CEST | Update | https://www.mdpi.com/2075-4701/10/1/6 |
| article html file updated | 19 July 2022 21:15 CEST | Update | - |
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| article html file updated | 26 December 2019 11:19 CET | Original file | - |
| article pdf uploaded. | 26 December 2019 11:17 CET | Updated version of record | https://www.mdpi.com/2075-4701/10/1/6/pdf |
| article xml uploaded. | 26 December 2019 11:17 CET | Update | https://www.mdpi.com/2075-4701/10/1/6/xml |
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| article pdf uploaded. | 25 December 2019 11:06 CET | Updated version of record | https://www.mdpi.com/2075-4701/10/1/6/pdf-vor |
| article pdf uploaded. | 19 December 2019 15:52 CET | Version of Record | https://www.mdpi.com/2075-4701/10/1/6/pdf-vor |
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