| article html file updated | 6 February 2020 12:36 CET | Update | https://www.mdpi.com/2073-4425/5/4/926 |
| article html file updated | 22 March 2019 01:55 CET | Update | - |
| article html file updated | 20 August 2015 21:50 CEST | Update | - |
| article html file updated | 26 December 2014 11:28 CET | Update | - |
| article xml file uploaded | 26 December 2014 11:28 CET | Update | https://www.mdpi.com/2073-4425/5/4/926/xml |
| article html file updated | 9 October 2014 07:37 CEST | Original file | - |
| article xml file uploaded | 9 October 2014 07:37 CEST | Original file | - |
| article pdf uploaded. | 30 September 2014 15:46 CEST | Updated version of record | https://www.mdpi.com/2073-4425/5/4/926/pdf |
| article pdf uploaded. | 29 September 2014 15:45 CEST | Version of Record | https://www.mdpi.com/2073-4425/5/4/926/pdf-vor |
