| article html file updated | 6 February 2020 10:59 CET | Update | https://www.mdpi.com/1996-1073/7/8/4802 |
| article html file updated | 7 May 2019 11:04 CEST | Update | N/A |
| article html file updated | 21 March 2019 21:42 CET | Update | N/A |
| article html file updated | 20 August 2015 13:38 CEST | Update | N/A |
| article html file updated | 5 September 2014 10:32 CEST | Original file | N/A |
| article xml file uploaded | 5 September 2014 10:32 CEST | Original file | https://www.mdpi.com/1996-1073/7/8/4802/xml |
| article pdf uploaded. | 25 July 2014 15:14 CEST | Updated version of record | https://www.mdpi.com/1996-1073/7/8/4802/pdf |
| article pdf uploaded. | 24 July 2014 13:39 CEST | Version of Record | https://www.mdpi.com/1996-1073/7/8/4802/pdf-vor |
