| article html file updated | 31 August 2025 05:14 CEST | Update | https://www.mdpi.com/1996-1073/12/23/4509 |
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| article pdf uploaded. | 2 December 2019 10:32 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/23/4509/pdf |
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| article html file updated | 27 November 2019 12:35 CET | Original file | - |
| article pdf uploaded. | 27 November 2019 10:38 CET | Version of Record | https://www.mdpi.com/1996-1073/12/23/4509/pdf-vor |
| article xml uploaded. | 27 November 2019 10:38 CET | Update | - |
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