| article html file updated | 30 August 2025 00:22 CEST | Update | https://www.mdpi.com/2071-1050/9/2/240 |
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| article xml uploaded. | 13 February 2017 10:40 CET | Original file | https://www.mdpi.com/2071-1050/9/2/240/xml |
| article pdf uploaded. | 13 February 2017 10:40 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/2/240/pdf |
| article pdf uploaded. | 9 February 2017 17:43 CET | Version of Record | https://www.mdpi.com/2071-1050/9/2/240/pdf-vor |
