| article html file updated | 29 August 2025 23:54 CEST | Update | https://www.mdpi.com/1999-4923/8/4/33 |
| article html file updated | 16 July 2022 03:52 CEST | Update | N/A |
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| article xml uploaded. | 15 November 2016 13:27 CET | Update | https://www.mdpi.com/1999-4923/8/4/33/xml |
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| article pdf uploaded. | 15 November 2016 13:27 CET | Version of Record | https://www.mdpi.com/1999-4923/8/4/33/pdf |
