| article html file updated | 31 August 2025 15:17 CEST | Update | https://www.mdpi.com/1996-1073/13/6/1521 |
| article html file updated | 20 July 2022 23:47 CEST | Update | - |
| article html file updated | 25 March 2020 02:22 CET | Original file | - |
| article pdf uploaded. | 25 March 2020 02:20 CET | Updated version of record | https://www.mdpi.com/1996-1073/13/6/1521/pdf |
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| article pdf uploaded. | 23 March 2020 16:34 CET | Version of Record | https://www.mdpi.com/1996-1073/13/6/1521/pdf-vor |
| article xml file uploaded | 23 March 2020 16:34 CET | Original file | - |
