| article html file updated | 31 August 2025 01:56 CEST | Update | https://www.mdpi.com/2226-4787/7/4/140 |
| article html file updated | 20 July 2022 02:48 CEST | Update | - |
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| article html file updated | 31 December 2019 00:34 CET | Update | - |
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| article pdf uploaded. | 25 September 2019 06:02 CEST | Version of Record | https://www.mdpi.com/2226-4787/7/4/140/pdf |
| article xml uploaded. | 25 September 2019 06:02 CEST | Update | https://www.mdpi.com/2226-4787/7/4/140/xml |
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