| article html file updated | 7 February 2020 22:12 CET | Update | https://www.mdpi.com/1424-8220/17/2/231 |
| article html file updated | 23 September 2019 01:22 CEST | Update | - |
| article html file updated | 4 May 2019 13:39 CEST | Update | - |
| article html file updated | 2 March 2017 11:03 CET | Update | - |
| article html file updated | 25 January 2017 07:42 CET | Original file | - |
| article xml uploaded. | 25 January 2017 07:41 CET | Original file | https://www.mdpi.com/1424-8220/17/2/231/xml |
| article pdf uploaded. | 25 January 2017 07:41 CET | Version of Record | https://www.mdpi.com/1424-8220/17/2/231/pdf |
