| article html file updated | 31 August 2025 01:22 CEST | Update | https://www.mdpi.com/1996-1073/12/18/3519 |
| article html file updated | 20 July 2022 03:29 CEST | Update | - |
| article html file updated | 13 February 2020 17:19 CET | Update | - |
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| article pdf uploaded. | 13 September 2019 03:54 CEST | Updated version of record | https://www.mdpi.com/1996-1073/12/18/3519/pdf |
| article xml uploaded. | 13 September 2019 03:54 CEST | Update | https://www.mdpi.com/1996-1073/12/18/3519/xml |
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| article pdf uploaded. | 12 September 2019 16:03 CEST | Version of Record | https://www.mdpi.com/1996-1073/12/18/3519/pdf-vor |
| article xml file uploaded | 12 September 2019 16:03 CEST | Original file | - |
