| article html file updated | 6 February 2020 08:41 CET | Update | https://www.mdpi.com/2073-4360/6/4/1187 |
| article html file updated | 7 May 2019 15:43 CEST | Update | - |
| article html file updated | 21 March 2019 15:44 CET | Update | - |
| article html file updated | 20 August 2015 03:43 CEST | Original file | - |
| article pdf uploaded. | 22 April 2014 16:57 CEST | Updated version of record | https://www.mdpi.com/2073-4360/6/4/1187/pdf |
| article pdf uploaded. | 17 April 2014 15:08 CEST | Version of Record | https://www.mdpi.com/2073-4360/6/4/1187/pdf-vor |
