| article html file updated | 6 February 2020 11:49 CET | Update | https://www.mdpi.com/1996-1073/7/9/5624 |
| article html file updated | 7 May 2019 09:04 CEST | Update | - |
| article html file updated | 21 March 2019 23:53 CET | Update | - |
| article html file updated | 20 August 2015 16:41 CEST | Update | - |
| article html file updated | 28 October 2014 03:25 CET | Original file | - |
| article xml file uploaded | 28 October 2014 03:25 CET | Original file | https://www.mdpi.com/1996-1073/7/9/5624/xml |
| article pdf uploaded. | 28 August 2014 13:56 CEST | Updated version of record | https://www.mdpi.com/1996-1073/7/9/5624/pdf |
| article pdf uploaded. | 28 August 2014 13:37 CEST | Updated version of record | https://www.mdpi.com/1996-1073/7/9/5624/pdf-vor |
| article pdf uploaded. | 27 August 2014 11:25 CEST | Version of Record | https://www.mdpi.com/1996-1073/7/9/5624/pdf-vor |
