| article html file updated | 12 September 2018 05:39 CEST | Update | https://www.mdpi.com/1420-3049/19/3/3744 |
| article html file updated | 20 August 2015 00:45 CEST | Original file | - |
| article pdf uploaded. | 24 March 2014 18:36 CET | Updated version of record | https://www.mdpi.com/1420-3049/19/3/3744/pdf |
| article pdf uploaded. | 24 March 2014 10:59 CET | Version of Record | https://www.mdpi.com/1420-3049/19/3/3744/pdf-vor |
