| article html file updated | 8 February 2020 04:01 CET | Update | https://www.mdpi.com/1424-8220/17/4/907 |
| article html file updated | 24 September 2019 10:18 CEST | Update | - |
| article html file updated | 4 May 2019 01:24 CEST | Update | - |
| article html file updated | 29 April 2017 14:25 CEST | Update | - |
| article html file updated | 20 April 2017 13:50 CEST | Original file | - |
| article xml uploaded. | 20 April 2017 13:49 CEST | Update | https://www.mdpi.com/1424-8220/17/4/907/xml |
| article pdf uploaded. | 20 April 2017 13:49 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/907/pdf |
