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| article xml uploaded. | 7 September 2017 02:56 CEST | Update | https://www.mdpi.com/1660-3397/15/9/276/xml |
| article pdf uploaded. | 7 September 2017 02:56 CEST | Updated version of record | https://www.mdpi.com/1660-3397/15/9/276/pdf |
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| article pdf uploaded. | 30 August 2017 12:11 CEST | Version of Record | https://www.mdpi.com/1660-3397/15/9/276/pdf-vor |
