| article html file updated | 8 February 2020 19:46 CET | Update | https://www.mdpi.com/2071-1050/9/11/1947 |
| article html file updated | 28 September 2019 02:12 CEST | Update | - |
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| article xml uploaded. | 29 October 2017 04:52 CET | Original file | https://www.mdpi.com/2071-1050/9/11/1947/xml |
| article pdf uploaded. | 29 October 2017 04:52 CET | Version of Record | https://www.mdpi.com/2071-1050/9/11/1947/pdf |
