| article html file updated | 6 February 2020 00:18 CET | Update | https://www.mdpi.com/1660-4601/10/2/528 |
| article html file updated | 8 May 2019 09:06 CEST | Update | - |
| article html file updated | 20 March 2019 17:57 CET | Update | - |
| article html file updated | 17 June 2015 05:58 CEST | Update | - |
| article html file updated | 8 February 2013 09:44 CET | Original file | - |
| article pdf uploaded. | 30 January 2013 11:42 CET | Version of Record | https://www.mdpi.com/1660-4601/10/2/528/pdf |
