| article html file updated | 6 February 2020 11:04 CET | Update | https://www.mdpi.com/1996-1073/7/8/4835 |
| article html file updated | 7 May 2019 10:53 CEST | Update | - |
| article html file updated | 21 March 2019 21:56 CET | Update | - |
| article html file updated | 20 August 2015 13:59 CEST | Update | - |
| article html file updated | 11 September 2014 12:14 CEST | Original file | - |
| article xml file uploaded | 11 September 2014 12:14 CEST | Original file | https://www.mdpi.com/1996-1073/7/8/4835/xml |
| article pdf uploaded. | 29 July 2014 15:15 CEST | Version of Record | https://www.mdpi.com/1996-1073/7/8/4835/pdf |
