| article html file updated | 21 August 2015 04:53 CEST | Update | https://www.mdpi.com/1424-8220/15/1/331 |
| article html file updated | 13 February 2015 07:11 CET | Original file | - |
| article xml file uploaded | 13 February 2015 07:11 CET | Original file | https://www.mdpi.com/1424-8220/15/1/331/xml |
| article pdf uploaded. | 25 December 2014 12:03 CET | Version of Record | https://www.mdpi.com/1424-8220/15/1/331/pdf |
