| article html file updated | 29 August 2025 22:09 CEST | Update | https://www.mdpi.com/1999-4915/7/9/2864 |
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| article xml file uploaded | 28 September 2015 11:54 CEST | Original file | https://www.mdpi.com/1999-4915/7/9/2864/xml |
| article pdf uploaded. | 24 September 2015 05:56 CEST | Updated version of record | https://www.mdpi.com/1999-4915/7/9/2864/pdf |
| article pdf uploaded. | 23 September 2015 15:49 CEST | Version of Record | https://www.mdpi.com/1999-4915/7/9/2864/pdf-vor |