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| article xml uploaded. | 15 December 2017 10:02 CET | Update | https://www.mdpi.com/2071-1050/9/12/2274/xml |
| article pdf uploaded. | 15 December 2017 10:02 CET | Updated version of record | https://www.mdpi.com/2071-1050/9/12/2274/pdf |
| article html file updated | 8 December 2017 08:11 CET | Original file | N/A |
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| article pdf uploaded. | 8 December 2017 08:10 CET | Version of Record | https://www.mdpi.com/2071-1050/9/12/2274/pdf-vor |
