| article html file updated | 8 February 2020 03:13 CET | Update | https://www.mdpi.com/1424-8220/17/4/807 |
| article html file updated | 24 September 2019 05:43 CEST | Update | - |
| article html file updated | 4 May 2019 02:56 CEST | Update | - |
| article html file updated | 29 April 2017 14:01 CEST | Update | - |
| article html file updated | 9 April 2017 11:49 CEST | Original file | - |
| article xml uploaded. | 9 April 2017 11:47 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/807/xml |
| article pdf uploaded. | 9 April 2017 11:47 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/807/pdf |
