| article html file updated | 31 August 2025 07:04 CEST | Update | https://www.mdpi.com/2220-9964/9/1/8 |
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| article pdf uploaded. | 20 December 2019 10:44 CET | Version of Record | https://www.mdpi.com/2220-9964/9/1/8/pdf |
| article xml uploaded. | 20 December 2019 10:44 CET | Update | https://www.mdpi.com/2220-9964/9/1/8/xml |
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