| article html file updated | 12 September 2018 08:08 CEST | Update | https://www.mdpi.com/1420-3049/19/6/7990 |
| article html file updated | 20 August 2015 09:45 CEST | Update | - |
| article html file updated | 1 July 2014 05:30 CEST | Original file | - |
| article xml file uploaded | 1 July 2014 05:30 CEST | Original file | https://www.mdpi.com/1420-3049/19/6/7990/xml |
| article pdf uploaded. | 12 June 2014 15:47 CEST | Version of Record | https://www.mdpi.com/1420-3049/19/6/7990/pdf |
