| article html file updated | 6 February 2020 14:49 CET | Update | https://www.mdpi.com/1660-3397/13/1/102 | 
| article html file updated | 7 May 2019 03:13 CEST | Update | - | 
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| article xml file uploaded | 27 January 2015 07:12 CET | Original file | https://www.mdpi.com/1660-3397/13/1/102/xml | 
| article supplementary file uploaded. | 29 December 2014 14:09 CET | - | https://www.mdpi.com/1660-3397/13/1/102#supplementary | 
| article pdf uploaded. | 29 December 2014 14:09 CET | Version of Record | https://www.mdpi.com/1660-3397/13/1/102/pdf |