| article html file updated | 8 February 2020 03:22 CET | Update | https://www.mdpi.com/1424-8220/17/4/830 |
| article html file updated | 24 September 2019 06:34 CEST | Update | - |
| article html file updated | 4 May 2019 02:37 CEST | Update | - |
| article html file updated | 29 April 2017 14:06 CEST | Update | - |
| article html file updated | 11 April 2017 15:00 CEST | Original file | - |
| article xml uploaded. | 11 April 2017 14:58 CEST | Update | https://www.mdpi.com/1424-8220/17/4/830/xml |
| article pdf uploaded. | 11 April 2017 14:58 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/830/pdf |
