| article html file updated | 5 February 2020 13:35 CET | Update | https://www.mdpi.com/2072-6694/2/1/43 |
| article html file updated | 9 May 2019 08:18 CEST | Update | - |
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| article html file updated | 16 June 2015 08:13 CEST | Update | - |
| article html file updated | 22 November 2013 11:16 CET | Original file | - |
| article xml file uploaded | 22 November 2013 11:16 CET | Original file | https://www.mdpi.com/2072-6694/2/1/43/xml |
