| article html file updated | 6 February 2020 09:23 CET | Update | https://www.mdpi.com/2071-1050/6/5/3105 |
| article html file updated | 7 May 2019 14:16 CEST | Update | - |
| article html file updated | 21 March 2019 17:22 CET | Update | - |
| article html file updated | 20 August 2015 07:47 CEST | Original file | - |
| article pdf uploaded. | 22 May 2014 10:19 CEST | Updated version of record | https://www.mdpi.com/2071-1050/6/5/3105/pdf |
| article pdf uploaded. | 21 May 2014 14:36 CEST | Version of Record | https://www.mdpi.com/2071-1050/6/5/3105/pdf-vor |
