| article html file updated | 8 February 2020 04:50 CET | Update | https://www.mdpi.com/1996-1073/10/5/607 | 
| article html file updated | 24 September 2019 14:39 CEST | Update | - | 
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| article xml uploaded. | 1 May 2017 09:52 CEST | Original file | https://www.mdpi.com/1996-1073/10/5/607/xml | 
| article pdf uploaded. | 1 May 2017 09:52 CEST | Version of Record | https://www.mdpi.com/1996-1073/10/5/607/pdf |