| article html file updated | 15 August 2026 22:13 CEST | Update | https://www.mdpi.com/2079-9276/8/2/74 |
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| article pdf uploaded. | 20 April 2019 10:59 CEST | Version of Record | https://www.mdpi.com/2079-9276/8/2/74/pdf |
| article xml uploaded. | 20 April 2019 10:59 CEST | Update | https://www.mdpi.com/2079-9276/8/2/74/xml |
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