| article html file updated | 31 August 2025 06:26 CEST | Update | https://www.mdpi.com/2227-9032/7/4/161 |
| article html file updated | 19 July 2022 21:48 CEST | Update | - |
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| article pdf uploaded. | 16 December 2019 07:50 CET | Updated version of record | https://www.mdpi.com/2227-9032/7/4/161/pdf |
| article xml uploaded. | 16 December 2019 07:50 CET | Update | https://www.mdpi.com/2227-9032/7/4/161/xml |
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| article pdf uploaded. | 12 December 2019 16:03 CET | Version of Record | https://www.mdpi.com/2227-9032/7/4/161/pdf-vor |
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