| article html file updated | 8 February 2020 03:33 CET | Update | https://www.mdpi.com/1424-8220/17/4/854 |
| article html file updated | 24 September 2019 07:29 CEST | Update | - |
| article html file updated | 4 May 2019 02:18 CEST | Update | - |
| article html file updated | 29 April 2017 14:11 CEST | Update | - |
| article html file updated | 17 April 2017 17:04 CEST | Original file | - |
| article xml uploaded. | 17 April 2017 17:03 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/854/xml |
| article pdf uploaded. | 17 April 2017 17:03 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/4/854/pdf |
| article pdf uploaded. | 13 April 2017 14:06 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/854/pdf-vor |
