| article html file updated | 6 February 2020 11:33 CET | Update | https://www.mdpi.com/2075-1702/2/3/202 |
| article html file updated | 7 May 2019 09:33 CEST | Update | - |
| article html file updated | 21 March 2019 23:17 CET | Update | - |
| article html file updated | 20 August 2015 15:42 CEST | Original file | - |
| article pdf uploaded. | 19 August 2014 14:13 CEST | Updated version of record | https://www.mdpi.com/2075-1702/2/3/202/pdf |
| article pdf uploaded. | 18 August 2014 14:54 CEST | Version of Record | https://www.mdpi.com/2075-1702/2/3/202/pdf-vor |
