| article html file updated | 6 February 2020 10:55 CET | Update | https://www.mdpi.com/2073-4441/6/7/2127 |
| article html file updated | 7 May 2019 11:11 CEST | Update | - |
| article html file updated | 21 March 2019 21:31 CET | Update | - |
| article html file updated | 20 August 2015 13:29 CEST | Update | - |
| article html file updated | 6 August 2014 08:43 CEST | Original file | - |
| article xml file uploaded | 6 August 2014 08:43 CEST | Original file | https://www.mdpi.com/2073-4441/6/7/2127/xml |
| article pdf uploaded. | 23 July 2014 10:45 CEST | Version of Record | https://www.mdpi.com/2073-4441/6/7/2127/pdf |
