| article html file updated | 6 February 2020 04:53 CET | Update | https://www.mdpi.com/1996-1073/6/10/5259 |
| article html file updated | 7 May 2019 23:20 CEST | Update | - |
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| article xml uploaded. | 21 July 2017 06:04 CEST | Original file | https://www.mdpi.com/1996-1073/6/10/5259/xml |
| article pdf uploaded. | 15 October 2013 15:07 CEST | Version of Record | https://www.mdpi.com/1996-1073/6/10/5259/pdf |