| article html file updated | 31 August 2025 07:26 CEST | Update | https://www.mdpi.com/2079-9292/9/1/21 |
| article html file updated | 19 July 2022 20:52 CEST | Update | - |
| article html file updated | 14 February 2020 21:33 CET | Update | - |
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| article pdf uploaded. | 3 January 2020 10:31 CET | Updated version of record | https://www.mdpi.com/2079-9292/9/1/21/pdf |
| article xml uploaded. | 3 January 2020 10:31 CET | Update | https://www.mdpi.com/2079-9292/9/1/21/xml |
| article xml file uploaded | 3 January 2020 10:30 CET | Update | - |
| article pdf uploaded. | 3 January 2020 10:20 CET | Updated version of record | https://www.mdpi.com/2079-9292/9/1/21/pdf-vor |
| article pdf uploaded. | 3 January 2020 10:19 CET | Updated version of record | https://www.mdpi.com/2079-9292/9/1/21/pdf-vor |
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| article pdf uploaded. | 31 December 2019 13:23 CET | Updated version of record | https://www.mdpi.com/2079-9292/9/1/21/pdf-vor |
| article xml uploaded. | 31 December 2019 13:23 CET | Update | - |
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| article xml file uploaded | 24 December 2019 16:17 CET | Original file | - |
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