| article html file updated | 6 February 2020 22:20 CET | Update | https://www.mdpi.com/2073-4441/7/9/4724 |
| article html file updated | 6 May 2019 12:19 CEST | Update | - |
| article html file updated | 26 March 2019 09:50 CET | Update | - |
| article html file updated | 12 October 2015 13:38 CEST | Original file | - |
| article xml file uploaded | 12 October 2015 13:38 CEST | Original file | https://www.mdpi.com/2073-4441/7/9/4724/xml |
| article pdf uploaded. | 2 September 2015 10:49 CEST | Updated version of record | https://www.mdpi.com/2073-4441/7/9/4724/pdf |
| article pdf uploaded. | 31 August 2015 16:54 CEST | Version of Record | https://www.mdpi.com/2073-4441/7/9/4724/pdf-vor |
