| article html file updated | 31 August 2025 07:32 CEST | Update | https://www.mdpi.com/1996-1073/13/1/131 |
| article html file updated | 19 July 2022 20:46 CEST | Update | - |
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| article html file updated | 26 December 2019 10:57 CET | Original file | - |
| article pdf uploaded. | 26 December 2019 10:56 CET | Version of Record | https://www.mdpi.com/1996-1073/13/1/131/pdf |
| article xml uploaded. | 26 December 2019 10:56 CET | Update | https://www.mdpi.com/1996-1073/13/1/131/xml |
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