| article html file updated | 6 February 2020 19:14 CET | Update | https://www.mdpi.com/1424-8220/15/6/12816 |
| article html file updated | 6 May 2019 18:42 CEST | Update | - |
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| article html file updated | 21 August 2015 12:55 CEST | Update | - |
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| article xml file uploaded | 15 July 2015 05:36 CEST | Original file | https://www.mdpi.com/1424-8220/15/6/12816/xml |
| article pdf uploaded. | 1 June 2015 13:13 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/6/12816/pdf |
