| article html file updated | 5 February 2020 16:09 CET | Update | https://www.mdpi.com/1424-8247/3/12/3581 |
| article html file updated | 9 May 2019 03:06 CEST | Update | - |
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| article xml file uploaded | 5 June 2014 09:07 CEST | Original file | https://www.mdpi.com/1424-8247/3/12/3581/xml |
