| article html file updated | 31 August 2025 09:14 CEST | Update | https://www.mdpi.com/1996-1073/13/2/451 |
| article html file updated | 20 July 2022 17:45 CEST | Update | - |
| article html file updated | 15 February 2020 03:43 CET | Update | - |
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| article pdf uploaded. | 17 January 2020 07:48 CET | Version of Record | https://www.mdpi.com/1996-1073/13/2/451/pdf |
| article xml uploaded. | 17 January 2020 07:48 CET | Update | https://www.mdpi.com/1996-1073/13/2/451/xml |
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