| article html file updated | 31 August 2025 07:41 CEST | Update | https://www.mdpi.com/1911-8074/13/1/4 |
| article html file updated | 19 July 2022 20:37 CEST | Update | N/A |
| article html file updated | 14 February 2020 22:22 CET | Update | N/A |
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| article html file updated | 8 January 2020 05:02 CET | Original file | N/A |
| article pdf uploaded. | 8 January 2020 05:01 CET | Updated version of record | https://www.mdpi.com/1911-8074/13/1/4/pdf |
| article xml uploaded. | 8 January 2020 05:01 CET | Update | https://www.mdpi.com/1911-8074/13/1/4/xml |
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| article pdf uploaded. | 28 December 2019 11:17 CET | Version of Record | https://www.mdpi.com/1911-8074/13/1/4/pdf-vor |
| article xml file uploaded | 28 December 2019 11:17 CET | Original file | N/A |
