| article html file updated | 8 February 2020 02:21 CET | Update | https://www.mdpi.com/1424-8220/17/4/686 |
| article html file updated | 24 September 2019 00:53 CEST | Update | - |
| article html file updated | 4 May 2019 04:48 CEST | Update | - |
| article html file updated | 29 April 2017 13:31 CEST | Update | - |
| article html file updated | 27 March 2017 14:11 CEST | Original file | - |
| article xml uploaded. | 27 March 2017 14:09 CEST | Update | https://www.mdpi.com/1424-8220/17/4/686/xml |
| article pdf uploaded. | 27 March 2017 14:09 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/686/pdf |
