| article html file updated | 6 February 2020 02:48 CET | Update | https://www.mdpi.com/1424-2818/5/3/426 |
| article html file updated | 8 May 2019 03:41 CEST | Update | - |
| article html file updated | 21 March 2019 00:15 CET | Update | - |
| article html file updated | 17 June 2015 10:31 CEST | Update | - |
| article html file updated | 14 August 2014 11:41 CEST | Update | - |
| article xml file uploaded | 14 August 2014 11:41 CEST | Update | https://www.mdpi.com/1424-2818/5/3/426/xml |
| article html file updated | 14 August 2014 11:21 CEST | Original file | - |
| article xml file uploaded | 14 August 2014 11:21 CEST | Original file | - |
| article pdf uploaded. | 28 June 2013 15:05 CEST | Updated version of record | https://www.mdpi.com/1424-2818/5/3/426/pdf |
| article pdf uploaded. | 25 June 2013 10:46 CEST | Version of Record | https://www.mdpi.com/1424-2818/5/3/426/pdf-vor |
