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| article xml uploaded. | 31 July 2017 12:12 CEST | Original file | https://www.mdpi.com/2073-4360/9/8/323/xml |
| article pdf uploaded. | 31 July 2017 12:12 CEST | Updated version of record | https://www.mdpi.com/2073-4360/9/8/323/pdf |
| article pdf uploaded. | 30 July 2017 14:34 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/8/323/pdf-vor |
