| article html file updated | 8 February 2020 03:11 CET | Update | https://www.mdpi.com/1424-8220/17/4/804 |
| article html file updated | 24 September 2019 05:31 CEST | Update | - |
| article html file updated | 4 May 2019 03:00 CEST | Update | - |
| article html file updated | 29 April 2017 14:00 CEST | Update | - |
| article html file updated | 8 April 2017 11:59 CEST | Original file | - |
| article xml uploaded. | 8 April 2017 11:58 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/804/xml |
| article pdf uploaded. | 8 April 2017 11:58 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/804/pdf |
