| article html file updated | 6 February 2020 12:45 CET | Update | https://www.mdpi.com/2071-1050/6/10/7013 |
| article html file updated | 7 May 2019 07:16 CEST | Update | - |
| article html file updated | 22 March 2019 02:21 CET | Update | - |
| article html file updated | 20 August 2015 22:40 CEST | Original file | - |
| article pdf uploaded. | 10 October 2014 15:31 CEST | Version of Record | https://www.mdpi.com/2071-1050/6/10/7013/pdf |
