| article html file updated | 31 August 2025 04:04 CEST | Update | https://www.mdpi.com/2226-4787/7/4/147 |
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| article pdf uploaded. | 5 November 2019 08:39 CET | Version of Record | https://www.mdpi.com/2226-4787/7/4/147/pdf |
| article xml uploaded. | 5 November 2019 08:39 CET | Update | https://www.mdpi.com/2226-4787/7/4/147/xml |
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