| article html file updated | 7 February 2020 14:04 CET | Update | https://www.mdpi.com/2071-1050/8/9/866 |
| article html file updated | 5 May 2019 05:46 CEST | Update | - |
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| article html file updated | 27 September 2016 05:12 CEST | Update | - |
| article html file updated | 29 August 2016 14:40 CEST | Original file | - |
| article xml uploaded. | 29 August 2016 14:39 CEST | Original file | https://www.mdpi.com/2071-1050/8/9/866/xml |
| article pdf uploaded. | 29 August 2016 14:39 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/9/866/pdf |
