| article html file updated | 7 February 2020 07:26 CET | Update | https://new.mdpi.com/2308-3425/3/2/17 |
| article html file updated | 5 May 2019 18:17 CEST | Update | - |
| article html file updated | 27 March 2019 02:13 CET | Update | - |
| article html file updated | 20 April 2016 07:54 CEST | Original file | - |
| article pdf uploaded. | 19 April 2016 08:35 CEST | Version of Record | https://new.mdpi.com/2308-3425/3/2/17/pdf |
