| article html file updated | 8 February 2020 03:19 CET | Update | https://www.mdpi.com/1424-8220/17/4/826 |
| article html file updated | 24 September 2019 06:16 CEST | Update | - |
| article html file updated | 4 May 2019 02:43 CEST | Update | - |
| article html file updated | 29 April 2017 14:05 CEST | Update | - |
| article html file updated | 11 April 2017 14:07 CEST | Original file | - |
| article xml uploaded. | 11 April 2017 14:06 CEST | Update | https://www.mdpi.com/1424-8220/17/4/826/xml |
| article pdf uploaded. | 11 April 2017 14:06 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/826/pdf |
