| article html file updated | 8 February 2020 03:43 CET | Update | https://www.mdpi.com/1424-8220/17/4/876 |
| article html file updated | 24 September 2019 08:30 CEST | Update | - |
| article html file updated | 4 May 2019 01:59 CEST | Update | - |
| article html file updated | 29 April 2017 14:17 CEST | Update | - |
| article html file updated | 17 April 2017 16:53 CEST | Original file | - |
| article xml uploaded. | 17 April 2017 16:52 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/876/xml |
| article pdf uploaded. | 17 April 2017 16:52 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/4/876/pdf |
| article pdf uploaded. | 16 April 2017 12:21 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/876/pdf-vor |
