| article html file updated | 8 February 2020 02:50 CET | Update | https://www.mdpi.com/1424-8220/17/4/759 |
| article html file updated | 24 September 2019 03:40 CEST | Update | - |
| article html file updated | 4 May 2019 03:44 CEST | Update | - |
| article html file updated | 29 April 2017 13:49 CEST | Update | - |
| article html file updated | 6 April 2017 06:08 CEST | Original file | - |
| article xml uploaded. | 6 April 2017 06:07 CEST | Update | https://www.mdpi.com/1424-8220/17/4/759/xml |
| article pdf uploaded. | 6 April 2017 06:07 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/4/759/pdf |
| article pdf uploaded. | 3 April 2017 10:22 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/759/pdf-vor |
