| article html file updated | 9 February 2020 04:02 CET | Update | https://www.mdpi.com/1996-1073/11/2/266 |
| article html file updated | 2 May 2019 00:10 CEST | Update | - |
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| article xml uploaded. | 23 January 2018 17:27 CET | Original file | https://www.mdpi.com/1996-1073/11/2/266/xml |
| article pdf uploaded. | 23 January 2018 17:27 CET | Version of Record | https://www.mdpi.com/1996-1073/11/2/266/pdf |
