| article html file updated | 29 August 2025 22:30 CEST | Update | https://www.mdpi.com/1999-4915/7/12/2970 |
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| article pdf uploaded. | 19 December 2015 05:47 CET | Version of Record | https://www.mdpi.com/1999-4915/7/12/2970/pdf |
| article xml uploaded. | 19 December 2015 05:47 CET | Original file | https://www.mdpi.com/1999-4915/7/12/2970/xml |
