| article html file updated | 20 August 2015 03:22 CEST | Update | https://www.mdpi.com/1996-1073/7/4/2377 |
| article html file updated | 16 June 2014 09:21 CEST | Original file | - |
| article xml file uploaded | 16 June 2014 09:20 CEST | Original file | https://www.mdpi.com/1996-1073/7/4/2377/xml |
| article pdf uploaded. | 15 April 2014 15:11 CEST | Version of Record | https://www.mdpi.com/1996-1073/7/4/2377/pdf |
