| article html file updated | 21 August 2015 10:20 CEST | Update | https://www.mdpi.com/1424-8220/15/4/8570 |
| article html file updated | 12 May 2015 12:28 CEST | Original file | - |
| article xml file uploaded | 12 May 2015 12:28 CEST | Original file | https://www.mdpi.com/1424-8220/15/4/8570/xml |
| article pdf uploaded. | 13 April 2015 14:21 CEST | Version of Record | https://www.mdpi.com/1424-8220/15/4/8570/pdf |
