| article html file updated | 21 August 2015 05:08 CEST | Update | https://www.mdpi.com/1424-8220/15/1/642 |
| article html file updated | 13 February 2015 07:11 CET | Original file | N/A |
| article xml file uploaded | 13 February 2015 07:11 CET | Original file | https://www.mdpi.com/1424-8220/15/1/642/xml |
| article pdf uploaded. | 31 December 2014 09:38 CET | Version of Record | https://www.mdpi.com/1424-8220/15/1/642/pdf |
