| article html file updated | 6 February 2020 10:03 CET | Update | https://www.mdpi.com/1996-1073/7/6/3810 |
| article html file updated | 7 May 2019 12:56 CEST | Update | - |
| article html file updated | 21 March 2019 19:06 CET | Update | - |
| article html file updated | 20 August 2015 10:15 CEST | Update | - |
| article html file updated | 11 July 2014 09:20 CEST | Original file | - |
| article xml file uploaded | 11 July 2014 09:20 CEST | Original file | https://www.mdpi.com/1996-1073/7/6/3810/xml |
| article pdf uploaded. | 19 June 2014 11:38 CEST | Updated version of record | https://www.mdpi.com/1996-1073/7/6/3810/pdf |
| article pdf uploaded. | 18 June 2014 13:52 CEST | Version of Record | https://www.mdpi.com/1996-1073/7/6/3810/pdf-vor |
