| article html file updated | 1 September 2025 22:12 CEST | Update | https://www.mdpi.com/1996-1944/14/4/991 |
| article html file updated | 25 July 2022 04:12 CEST | Update | - |
| article html file updated | 25 February 2021 10:13 CET | Update | - |
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| article xml uploaded. | 25 February 2021 03:33 CET | Update | https://www.mdpi.com/1996-1944/14/4/991/xml |
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| article pdf uploaded. | 19 February 2021 19:17 CET | Version of Record | https://www.mdpi.com/1996-1944/14/4/991/pdf-vor |
