| article html file updated | 31 August 2025 11:24 CEST | Update | https://www.mdpi.com/1996-1944/13/4/821 |
| article html file updated | 20 July 2022 19:55 CEST | Update | - |
| article html file updated | 6 March 2020 21:49 CET | Update | - |
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| article xml uploaded. | 18 February 2020 03:32 CET | Update | https://www.mdpi.com/1996-1944/13/4/821/xml |
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| article pdf uploaded. | 11 February 2020 16:09 CET | Version of Record | https://www.mdpi.com/1996-1944/13/4/821/pdf-vor |
| article xml file uploaded | 11 February 2020 16:09 CET | Original file | - |
