| article html file updated | 30 August 2025 01:22 CEST | Update | https://www.mdpi.com/2306-5710/3/4/49 |
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| article xml uploaded. | 11 October 2017 12:22 CEST | Original file | https://www.mdpi.com/2306-5710/3/4/49/xml |
| article pdf uploaded. | 11 October 2017 12:22 CEST | Updated version of record | https://www.mdpi.com/2306-5710/3/4/49/pdf |
| article pdf uploaded. | 9 October 2017 15:27 CEST | Version of Record | https://www.mdpi.com/2306-5710/3/4/49/pdf-vor |
