| article html file updated | 6 February 2020 19:24 CET | Update | https://www.mdpi.com/1424-8220/15/6/13201 |
| article html file updated | 6 May 2019 18:22 CEST | Update | - |
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| article html file updated | 21 August 2015 13:12 CEST | Update | - |
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| article xml file uploaded | 15 July 2015 05:36 CEST | Original file | https://www.mdpi.com/1424-8220/15/6/13201/xml |
| article pdf uploaded. | 5 June 2015 10:13 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/6/13201/pdf |
