| article html file updated | 8 February 2020 03:56 CET | Update | https://www.mdpi.com/1424-8220/17/4/894 |
| article html file updated | 24 September 2019 09:51 CEST | Update | - |
| article html file updated | 4 May 2019 01:32 CEST | Update | - |
| article html file updated | 29 April 2017 14:21 CEST | Update | - |
| article html file updated | 19 April 2017 15:24 CEST | Original file | - |
| article xml uploaded. | 19 April 2017 15:23 CEST | Update | https://www.mdpi.com/1424-8220/17/4/894/xml |
| article pdf uploaded. | 19 April 2017 15:23 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/894/pdf |
