| article html file updated | 12 September 2018 05:02 CEST | Update | https://www.mdpi.com/1420-3049/19/2/1672 |
| article html file updated | 19 August 2015 19:26 CEST | Original file | - |
| article pdf uploaded. | 29 January 2014 13:23 CET | Version of Record | https://www.mdpi.com/1420-3049/19/2/1672/pdf |
