| article html file updated | 12 September 2018 06:08 CEST | Update | https://www.mdpi.com/1420-3049/19/4/4491 |
| article html file updated | 20 August 2015 02:46 CEST | Update | - |
| article html file updated | 23 May 2014 15:02 CEST | Original file | - |
| article xml file uploaded | 23 May 2014 15:02 CEST | Original file | https://www.mdpi.com/1420-3049/19/4/4491/xml |
| article pdf uploaded. | 10 April 2014 11:14 CEST | Version of Record | https://www.mdpi.com/1420-3049/19/4/4491/pdf |
