| article html file updated | 7 February 2020 18:54 CET | Update | https://www.mdpi.com/1996-1073/9/12/1014 |
| article html file updated | 22 September 2019 08:09 CEST | Update | - |
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| article xml uploaded. | 1 December 2016 08:27 CET | Original file | https://www.mdpi.com/1996-1073/9/12/1014/xml |
| article pdf uploaded. | 1 December 2016 08:27 CET | Version of Record | https://www.mdpi.com/1996-1073/9/12/1014/pdf |
