| article html file updated | 7 February 2020 10:26 CET | Update | https://www.mdpi.com/2227-9067/3/2/10 |
| article html file updated | 5 May 2019 12:26 CEST | Update | - |
| article html file updated | 27 March 2019 07:58 CET | Update | - |
| article html file updated | 1 July 2016 10:01 CEST | Update | - |
| article html file updated | 27 June 2016 08:24 CEST | Original file | - |
| article pdf uploaded. | 20 June 2016 14:44 CEST | Version of Record | https://www.mdpi.com/2227-9067/3/2/10/pdf |
