| article html file updated | 5 February 2020 21:15 CET | Update | https://www.mdpi.com/2072-4292/4/7/2181 |
| article html file updated | 8 May 2019 16:21 CEST | Update | N/A |
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| article xml file uploaded | 14 August 2014 12:05 CEST | Original file | https://www.mdpi.com/2072-4292/4/7/2181/xml |
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