| article html file updated | 29 August 2025 22:41 CEST | Update | https://www.mdpi.com/1999-4907/7/2/39 |
| article html file updated | 16 July 2022 01:45 CEST | Update | N/A |
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| article xml uploaded. | 18 March 2016 14:36 CET | Update | https://www.mdpi.com/1999-4907/7/2/39/xml |
| article pdf uploaded. | 6 February 2016 10:54 CET | Version of Record | https://www.mdpi.com/1999-4907/7/2/39/pdf |
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