| article html file updated | 8 February 2020 03:28 CET | Update | https://www.mdpi.com/1424-8220/17/4/844 |
| article html file updated | 24 September 2019 07:00 CEST | Update | - |
| article html file updated | 4 May 2019 02:26 CEST | Update | - |
| article html file updated | 29 April 2017 14:08 CEST | Update | - |
| article html file updated | 19 April 2017 11:28 CEST | Update | - |
| article xml uploaded. | 19 April 2017 11:26 CEST | Update | https://www.mdpi.com/1424-8220/17/4/844/xml |
| article pdf uploaded. | 19 April 2017 11:26 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/4/844/pdf |
| article html file updated | 12 April 2017 13:27 CEST | Original file | - |
| article pdf uploaded. | 12 April 2017 13:26 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/844/pdf-vor |
