| article html file updated | 6 February 2020 12:45 CET | Update | https://www.mdpi.com/1996-1073/7/10/6492 |
| article html file updated | 7 May 2019 07:16 CEST | Update | N/A |
| article html file updated | 22 March 2019 02:21 CET | Update | N/A |
| article html file updated | 20 August 2015 22:40 CEST | Update | N/A |
| article html file updated | 10 November 2014 11:17 CET | Original file | N/A |
| article xml file uploaded | 10 November 2014 11:17 CET | Original file | https://www.mdpi.com/1996-1073/7/10/6492/xml |
| article pdf uploaded. | 10 October 2014 15:18 CEST | Version of Record | https://www.mdpi.com/1996-1073/7/10/6492/pdf |
