| article html file updated | 8 February 2020 23:24 CET | Update | https://www.mdpi.com/1999-4893/10/4/137 |
| article html file updated | 29 September 2019 01:19 CEST | Update | - |
| article html file updated | 2 May 2019 10:04 CEST | Update | - |
| article html file updated | 18 April 2019 07:42 CEST | Update | - |
| article html file updated | 2 January 2018 16:36 CET | Update | - |
| article html file updated | 7 December 2017 11:57 CET | Original file | - |
| article xml uploaded. | 7 December 2017 11:55 CET | Original file | https://www.mdpi.com/1999-4893/10/4/137/xml |
| article pdf uploaded. | 7 December 2017 11:55 CET | Version of Record | https://www.mdpi.com/1999-4893/10/4/137/pdf |
