| article html file updated | 7 February 2020 14:07 CET | Update | https://www.mdpi.com/2071-1050/8/9/845 |
| article html file updated | 5 May 2019 05:41 CEST | Update | - |
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| article html file updated | 27 September 2016 05:06 CEST | Update | - |
| article html file updated | 30 August 2016 12:48 CEST | Original file | - |
| article xml uploaded. | 30 August 2016 12:46 CEST | Original file | https://www.mdpi.com/2071-1050/8/9/845/xml |
| article pdf uploaded. | 30 August 2016 12:46 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/9/845/pdf |
