| article html file updated | 8 February 2020 04:43 CET | Update | https://www.mdpi.com/1424-8220/17/5/990 |
| article html file updated | 24 September 2019 14:00 CEST | Update | - |
| article html file updated | 4 May 2019 00:08 CEST | Update | - |
| article html file updated | 2 June 2017 04:05 CEST | Update | - |
| article html file updated | 29 April 2017 11:06 CEST | Original file | - |
| article xml uploaded. | 29 April 2017 11:04 CEST | Update | https://www.mdpi.com/1424-8220/17/5/990/xml |
| article pdf uploaded. | 29 April 2017 11:04 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/5/990/pdf |
