| article html file updated | 5 February 2020 15:56 CET | Update | https://www.mdpi.com/2072-6694/2/4/1895 |
| article html file updated | 19 September 2019 01:55 CEST | Update | - |
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| article xml file uploaded | 22 November 2013 11:32 CET | Original file | https://www.mdpi.com/2072-6694/2/4/1895/xml |
