| article html file updated | 6 February 2020 00:52 CET | Update | https://www.mdpi.com/2071-1050/5/3/1067 |
| article html file updated | 19 September 2019 18:36 CEST | Update | - |
| article html file updated | 8 May 2019 07:37 CEST | Update | - |
| article html file updated | 20 March 2019 19:28 CET | Update | - |
| article html file updated | 17 June 2015 07:13 CEST | Original file | - |
| article pdf uploaded. | 7 March 2013 11:09 CET | Version of Record | https://www.mdpi.com/2071-1050/5/3/1067/pdf |
