| article html file updated | 30 August 2025 02:34 CEST | Update | https://www.mdpi.com/1996-1073/11/2/408 |
| article html file updated | 16 July 2022 09:09 CEST | Update | - |
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| article html file updated | 22 February 2018 06:26 CET | Original file | - |
| article xml uploaded. | 22 February 2018 06:25 CET | Update | https://www.mdpi.com/1996-1073/11/2/408/xml |
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| article pdf uploaded. | 22 February 2018 06:25 CET | Updated version of record | https://www.mdpi.com/1996-1073/11/2/408/pdf |
| article pdf uploaded. | 9 February 2018 17:37 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/408/pdf-vor |
