| article html file updated | 29 August 2025 23:46 CEST | Update | https://www.mdpi.com/1996-1073/9/10/840 |
| article html file updated | 16 July 2022 03:37 CEST | Update | - |
| article html file updated | 7 February 2020 16:36 CET | Update | - |
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| article xml uploaded. | 20 October 2016 04:26 CEST | Update | https://www.mdpi.com/1996-1073/9/10/840/xml |
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| article pdf uploaded. | 20 October 2016 04:26 CEST | Updated version of record | https://www.mdpi.com/1996-1073/9/10/840/pdf |
| article html file updated | 19 October 2016 11:17 CEST | Original file | - |
| article xml uploaded. | 19 October 2016 11:16 CEST | Original file | - |
| article pdf uploaded. | 19 October 2016 11:16 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/10/840/pdf-vor |
