| article html file updated | 29 August 2025 22:41 CEST | Update | https://www.mdpi.com/2075-5309/6/1/6 |
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| article pdf uploaded. | 15 February 2016 06:51 CET | Updated version of record | https://www.mdpi.com/2075-5309/6/1/6/pdf |
| article xml uploaded. | 15 February 2016 06:51 CET | Original file | https://www.mdpi.com/2075-5309/6/1/6/xml |
| article pdf uploaded. | 6 February 2016 05:00 CET | Version of Record | https://www.mdpi.com/2075-5309/6/1/6/pdf-vor |
