| article html file updated | 8 February 2020 03:29 CET | Update | https://www.mdpi.com/1424-8220/17/4/849 |
| article html file updated | 24 September 2019 07:08 CEST | Update | - |
| article html file updated | 4 May 2019 02:24 CEST | Update | - |
| article html file updated | 29 April 2017 14:09 CEST | Update | - |
| article html file updated | 13 April 2017 11:33 CEST | Original file | - |
| article xml uploaded. | 13 April 2017 11:32 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/849/xml |
| article pdf uploaded. | 13 April 2017 11:32 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/849/pdf |
