| article html file updated | 9 February 2020 05:09 CET | Update | https://www.mdpi.com/1424-8220/18/2/426 |
| article html file updated | 30 September 2019 10:19 CEST | Update | - |
| article html file updated | 1 May 2019 21:48 CEST | Update | - |
| article html file updated | 17 April 2019 20:37 CEST | Update | - |
| article html file updated | 28 March 2019 20:07 CET | Update | - |
| article html file updated | 14 March 2018 18:51 CET | Update | - |
| article html file updated | 1 February 2018 15:58 CET | Original file | - |
| article xml uploaded. | 1 February 2018 10:00 CET | Update | https://www.mdpi.com/1424-8220/18/2/426/xml |
| article xml uploaded. | 1 February 2018 10:00 CET | Original file | - |
| article pdf uploaded. | 1 February 2018 10:00 CET | Version of Record | https://www.mdpi.com/1424-8220/18/2/426/pdf |
