| article html file updated | 6 February 2020 04:25 CET | Update | https://www.mdpi.com/2071-1050/5/9/3976 |
| article html file updated | 8 May 2019 00:21 CEST | Update | - |
| article html file updated | 21 March 2019 04:40 CET | Update | - |
| article html file updated | 17 June 2015 13:18 CEST | Original file | - |
| article supplementary file uploaded. | 18 September 2013 16:27 CEST | - | https://www.mdpi.com/2071-1050/5/9/3976#supplementary |
| article pdf uploaded. | 17 September 2013 15:31 CEST | Version of Record | https://www.mdpi.com/2071-1050/5/9/3976/pdf |
