| article html file updated | 6 February 2020 11:33 CET | Update | https://www.mdpi.com/1660-4601/11/8/8456 | 
| article html file updated | 7 May 2019 09:32 CEST | Update | - | 
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| article html file updated | 26 August 2014 12:21 CEST | Update | - | 
| article xml file uploaded | 26 August 2014 12:21 CEST | Update | https://www.mdpi.com/1660-4601/11/8/8456/xml | 
| article html file updated | 21 August 2014 12:59 CEST | Original file | - | 
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| article pdf uploaded. | 19 August 2014 09:29 CEST | Version of Record | https://www.mdpi.com/1660-4601/11/8/8456/pdf |