| article html file updated | 6 February 2020 12:25 CET | Update | https://www.mdpi.com/1660-3397/12/9/4851 |
| article html file updated | 7 May 2019 07:56 CEST | Update | - |
| article html file updated | 22 March 2019 01:24 CET | Update | - |
| article html file updated | 20 August 2015 20:36 CEST | Update | - |
| article html file updated | 30 September 2014 06:00 CEST | Original file | - |
| article xml file uploaded | 30 September 2014 06:00 CEST | Original file | https://www.mdpi.com/1660-3397/12/9/4851/xml |
| article pdf uploaded. | 23 September 2014 12:46 CEST | Version of Record | https://www.mdpi.com/1660-3397/12/9/4851/pdf |
