| article html file updated | 31 August 2025 02:14 CEST | Update | https://www.mdpi.com/2076-0817/8/4/169 |
| article html file updated | 20 July 2022 02:26 CEST | Update | - |
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| article html file updated | 30 December 2019 18:25 CET | Update | - |
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| article pdf uploaded. | 30 September 2019 10:06 CEST | Version of Record | https://www.mdpi.com/2076-0817/8/4/169/pdf |
| article xml uploaded. | 30 September 2019 10:06 CEST | Update | https://www.mdpi.com/2076-0817/8/4/169/xml |
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