| article html file updated | 31 August 2025 08:25 CEST | Update | https://www.mdpi.com/1996-1073/13/2/294 |
| article html file updated | 19 July 2022 19:55 CEST | Update | - |
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| article pdf uploaded. | 17 January 2020 03:24 CET | Updated version of record | https://www.mdpi.com/1996-1073/13/2/294/pdf |
| article xml uploaded. | 17 January 2020 03:24 CET | Update | https://www.mdpi.com/1996-1073/13/2/294/xml |
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| article pdf uploaded. | 7 January 2020 12:54 CET | Version of Record | https://www.mdpi.com/1996-1073/13/2/294/pdf-vor |
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