| article html file updated | 8 February 2020 04:02 CET | Update | https://www.mdpi.com/1424-8220/17/4/911 |
| article html file updated | 24 September 2019 10:22 CEST | Update | - |
| article html file updated | 4 May 2019 01:22 CEST | Update | - |
| article html file updated | 29 April 2017 14:25 CEST | Update | - |
| article html file updated | 21 April 2017 10:04 CEST | Original file | - |
| article xml uploaded. | 21 April 2017 10:03 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/911/xml |
| article pdf uploaded. | 21 April 2017 10:03 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/4/911/pdf |
| article pdf uploaded. | 20 April 2017 14:15 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/911/pdf-vor |
