| article html file updated | 30 August 2025 02:13 CEST | Update | https://www.mdpi.com/1996-1073/11/1/169 |
| article html file updated | 16 July 2022 08:28 CEST | Update | - |
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| article pdf uploaded. | 11 January 2018 13:56 CET | Updated version of record | https://www.mdpi.com/1996-1073/11/1/169/pdf |
| article pdf uploaded. | 10 January 2018 16:55 CET | Version of Record | https://www.mdpi.com/1996-1073/11/1/169/pdf-vor |
