| article html file updated | 6 February 2020 20:12 CET | Update | https://www.mdpi.com/1424-8220/15/7/15520 |
| article html file updated | 6 May 2019 16:44 CEST | Update | - |
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| article html file updated | 21 August 2015 14:18 CEST | Update | - |
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| article xml file uploaded | 21 August 2015 04:51 CEST | Original file | https://www.mdpi.com/1424-8220/15/7/15520/xml |
| article pdf uploaded. | 30 June 2015 13:50 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/7/15520/pdf |
