| article html file updated | 6 February 2020 13:38 CET | Update | https://www.mdpi.com/1996-1073/7/11/7395 |
| article html file updated | 7 May 2019 05:30 CEST | Update | N/A |
| article html file updated | 25 March 2019 17:43 CET | Update | N/A |
| article html file updated | 21 August 2015 02:04 CEST | Original file | N/A |
| article pdf uploaded. | 17 November 2014 09:12 CET | Updated version of record | https://www.mdpi.com/1996-1073/7/11/7395/pdf |
| article pdf uploaded. | 14 November 2014 14:15 CET | Version of Record | https://www.mdpi.com/1996-1073/7/11/7395/pdf-vor |
