| article html file updated | 7 February 2020 11:49 CET | Update | https://www.mdpi.com/1424-8220/16/7/1103 | 
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| article xml uploaded. | 16 July 2016 09:59 CEST | Update | https://www.mdpi.com/1424-8220/16/7/1103/xml | 
| article pdf uploaded. | 16 July 2016 09:59 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/7/1103/pdf |