| article html file updated | 7 February 2020 07:14 CET | Update | https://www.mdpi.com/1424-8220/16/4/536 |
| article html file updated | 5 May 2019 18:41 CEST | Update | - |
| article html file updated | 27 March 2019 01:50 CET | Update | - |
| article html file updated | 29 April 2016 05:03 CEST | Update | - |
| article html file updated | 14 April 2016 09:10 CEST | Original file | - |
| article xml uploaded. | 14 April 2016 09:09 CEST | Update | https://www.mdpi.com/1424-8220/16/4/536/xml |
| article pdf uploaded. | 14 April 2016 09:09 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/536/pdf |
