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| article xml uploaded. | 1 August 2017 03:50 CEST | Original file | https://www.mdpi.com/1999-4915/9/8/201/xml |
| article pdf uploaded. | 1 August 2017 03:50 CEST | Updated version of record | https://www.mdpi.com/1999-4915/9/8/201/pdf |
| article pdf uploaded. | 28 July 2017 15:32 CEST | Version of Record | https://www.mdpi.com/1999-4915/9/8/201/pdf-vor |
