| article html file updated | 7 February 2020 00:31 CET | Update | https://www.mdpi.com/1999-4907/6/11/3946 |
| article html file updated | 6 May 2019 07:50 CEST | Update | - |
| article html file updated | 26 March 2019 13:58 CET | Original file | - |
| article pdf uploaded. | 3 November 2015 14:36 CET | Version of Record | https://www.mdpi.com/1999-4907/6/11/3946/pdf |
