| article html file updated | 8 February 2020 03:20 CET | Update | https://www.mdpi.com/1424-8220/17/4/835 |
| article html file updated | 24 September 2019 06:25 CEST | Update | - |
| article html file updated | 4 May 2019 02:40 CEST | Update | - |
| article html file updated | 29 April 2017 14:07 CEST | Update | - |
| article html file updated | 13 April 2017 08:37 CEST | Original file | - |
| article xml uploaded. | 13 April 2017 08:36 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/835/xml |
| article pdf uploaded. | 13 April 2017 08:36 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/4/835/pdf |
| article pdf uploaded. | 11 April 2017 15:49 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/835/pdf-vor |
