| article html file updated | 5 February 2020 21:54 CET | Update | https://www.mdpi.com/1424-8247/5/9/1008 |
| article html file updated | 19 September 2019 13:14 CEST | Update | - |
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| article xml file uploaded | 13 September 2013 17:16 CEST | Original file | https://www.mdpi.com/1424-8247/5/9/1008/xml |
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