| article html file updated | 7 February 2020 07:15 CET | Update | https://www.mdpi.com/1424-8220/16/4/537 |
| article html file updated | 5 May 2019 18:39 CEST | Update | - |
| article html file updated | 27 March 2019 01:52 CET | Update | - |
| article html file updated | 29 April 2016 05:03 CEST | Update | - |
| article html file updated | 14 April 2016 11:43 CEST | Original file | - |
| article xml uploaded. | 14 April 2016 11:41 CEST | Update | https://www.mdpi.com/1424-8220/16/4/537/xml |
| article pdf uploaded. | 14 April 2016 11:41 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/537/pdf |
