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| article xml uploaded. | 13 August 2017 03:01 CEST | Original file | https://www.mdpi.com/2071-1050/9/8/1424/xml |
| article pdf uploaded. | 13 August 2017 03:01 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/8/1424/pdf |
| article pdf uploaded. | 11 August 2017 14:04 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/8/1424/pdf-vor |
