| article html file updated | 30 August 2025 10:30 CEST | Update | https://www.mdpi.com/1996-1073/12/1/140 |
| article html file updated | 17 July 2022 20:08 CEST | Update | - |
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| article html file updated | 2 January 2019 06:34 CET | Original file | - |
| article pdf uploaded. | 2 January 2019 06:32 CET | Updated version of record | https://www.mdpi.com/1996-1073/12/1/140/pdf |
| article xml uploaded. | 2 January 2019 06:32 CET | Update | https://www.mdpi.com/1996-1073/12/1/140/xml |
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| article pdf uploaded. | 1 January 2019 10:42 CET | Version of Record | https://www.mdpi.com/1996-1073/12/1/140/pdf-vor |
| article xml file uploaded | 1 January 2019 10:42 CET | Original file | - |
