| article html file updated | 6 February 2020 13:52 CET | Update | https://www.mdpi.com/1999-4915/6/11/4664 |
| article html file updated | 20 September 2019 15:10 CEST | Update | - |
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| article html file updated | 28 November 2014 11:05 CET | Original file | - |
| article xml file uploaded | 28 November 2014 11:05 CET | Original file | https://www.mdpi.com/1999-4915/6/11/4664/xml |
| article pdf uploaded. | 24 November 2014 13:06 CET | Version of Record | https://www.mdpi.com/1999-4915/6/11/4664/pdf |
