| article html file updated | 21 August 2015 09:09 CEST | Update | https://www.mdpi.com/1424-8220/15/3/6924 |
| article html file updated | 21 April 2015 06:04 CEST | Update | - |
| article xml file uploaded | 21 April 2015 06:04 CEST | Update | https://www.mdpi.com/1424-8220/15/3/6924/xml |
| article html file updated | 17 April 2015 13:52 CEST | Update | - |
| article xml file uploaded | 17 April 2015 13:52 CEST | Update | - |
| article html file updated | 3 April 2015 12:09 CEST | Original file | - |
| article xml file uploaded | 3 April 2015 12:09 CEST | Original file | - |
| article pdf uploaded. | 23 March 2015 09:56 CET | Version of Record | https://www.mdpi.com/1424-8220/15/3/6924/pdf |
